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====================================================================== Microsoft Windows NT 4.0 Workstation and Windows NT 4.0 Server Service Pack 3 Readme File ====================================================================== (c) Copyright Microsoft Corporation, 1997 This document provides information about Microsoft Windows NT 4.0 Workstation and Windows NT 4.0 Server Service Pack 3, as well as answers to questions you might have. -------- Contents -------- 1.0 INTRODUCTION 1.1 What's New in Service Pack 3 1.2 Support for PowerPC Platform 1.3 Downloading and Extracting the Service Pack 2.0 INSTALLATION INSTRUCTIONS FOR WINDOWS NT 4.0 SERVICE PACK 3 2.1 Before You Install the Service Pack 2.2 Installing the Service Pack 2.3 Service Pack Uninstall 3.0 USER NOTES 3.1 Emergency Repair Disk 3.2 Adding New Components to the System 3.3 Installing Symbol Files from the Compact Disc 3.4 Remote Access Service PPP CHAP MD5 Authenticator Support 3.5 Microsoft DHCP Server 3.6 Unencrypted Passwords No Longer Sent by Default 3.7 Hardware Compatibility with Windows NT 4.0 4.0 LIST OF BUGS FIXED IN WINDOWS NT 4.0 SERVICE PACK 3 5.0 ADDITIONAL FIXES AND WORK-AROUNDS 5.1 Tape Drive Not Recognized by Windows NT 5.2 File Sharing Problems with Windows 95 5.3 Reinstalling Hilgraeve HyperTerminal Private Edition 5.4 Restoring Active Files and the Registry from Tape 5.5 LPR Printing 5.6 Updating Audio Drivers 6.0 NOTES FOR USERS OF THE 128-BIT VERSION OF WINDOWS NT 4.0 7.0 HOW TO OBTAIN THE NORTH AMERICAN (128-BIT) VERSION OF SERVICE PACK 3 1.0 INTRODUCTION ----------------- Service Pack 3 for Microsoft Windows NT 4.0 is easy to install from within Windows NT and changes only those files that were originally set up on the Windows NT Workstation or Windows NT Server system. Service Pack releases are cumulative: they contain all previous fixes and any new fixes made to the system. 1.1 What's New in Service Pack 3 --------------------------------- RPC Transport This service pack includes new versions of the remote procedure call (RPC) run-time dynamic-link library (DLL) and the RPC subsystem service (Rpcss.exe). These changes provide enhanced support for RPC message queuing, which is a feature of the upcoming Microsoft Message Queue Server (MSMQ). In order to use message queuing in an RPC client/server application on Windows NT 4.0, you must have Service Pack 3 installed on both the client machine and the server machine. You also need Beta 2 or later of MSMQ installed on both the client machine and the server machine. If you are developing RPC applications that support MSMQ, you need the new RPC run-time DLL, the new RPC subsystem service, and the new RPC header files and Microsoft Interface Definition Language (MIDL) compiler (available in the Win32 Software Development Kit). Also, RPC applications must support message queuing in order to use the following new features: The MIDL [message] attribute. The ncadg_mq protocol sequence. The RPC_C_MQ_* endpoint flags in the RPC_POLICY data structure. The RpcBindingInqOption and RpcBindingSetOption functions. For more information on using message queuing in your RPC applications, see RPC Message Queuing in the Service Pack 3 SDK Help file (see "Win32 APIs and SDK for Service Pack 3" later in this file), or refer to the documentation in the upcoming MSMQ SDK. CryptoAPI 2.0 The Microsoft Cryptography application programming interface (CryptoAPI) provides developers with core cryptographic and certificate functions. CryptoAPI 1.0 supports public-key and symmetric-key operations, such as key generation, key management, key exchange, encryption, decryption, hashing, digital signatures, and verification of signatures. CryptoAPI 2.0 (the upgrade contained in this service pack) includes this core cryptographic functionality as well as certificate-based functionality. Developers can use certificates with these public-key operations and perform the necessary encapsulations and encoding to apply certificates within their applications. CryptoAPI 2.0 uses a service-provider model in which cryptography is provided by Cryptographic Service Providers (CSPs). This model allows developers to easily adapt their applications to evolving cryptographic technologies and government export policies. Service Pack 3 provides one CSP (the Microsoft RSA Base Provider), which gives users and developers access to exportable cryptography. CryptoAPI 2.0 supports existing standards, such as X.509 v.3 certificate formats, ASN.1 encoding, and both PKCS #7 and #10 for encapsulation. This allows applications using CryptoAPI to operate with other certificate-based systems that adhere to these standards. The release version of CryptoAPI 2.0 contains several updates to the developer's release version of September 1996, including both parameter changes and naming changes. These changes are reflected in the Crypt32.dll and Wincrypt.h files. Please consult the CryptoAPI 2.0 documentation for details. DirectX 3.0 Service Pack 3 contains a complete software implementation of DirectX 3.0 as well as ongoing hardware support for the DirectDraw component of DirectX 3.0. This translates into the following major feature changes since the release of DirectX 2.0 as supported in Windows NT 4.0: DirectDraw Access to all 256 entries in the palette when in exclusive mode. DirectSound Software-based 3-D localization of audio (Direct3DSound APIs.) DirectInput COM interface supporting mouse and keyboard data with documentation and sample programs. DirectPlay IDirectPlayLobby, an interface that allows an external application to launch a DirectPlay 3.0 application and provide it with all information necessary to connect to a session. Internet TCP/IP service provider for multi-player applications over the Internet. Direct3D Software emulation for the Direct3D 3.0 API. (In Windows NT 4.0, we provide a beta version of the software drivers for Direct3D 2.0.) ODBC 3.0 Service Pack 3 includes the latest version of Microsoft Open Database Connectivity (ODBC) API. ODBC 3.0 provides an updated ODBC Control Panel and an ODBC Administrator interface that uses tabbed controls and provides more information about the ODBC components installed and in use on your system. This updated version of ODBC also introduces the concept of a file data source that can be shared or placed on a central server. With the appropriate drivers installed, ODBC 3.0 will let a user share a file data source or place a file data source on a central server. This new version of ODBC adheres to the standards of both the American National Standards Institute (ANSI) and the International Standards Organization (ISO). It is also backward compatible with previous versions of the ODBC API. For more information on ODBC 3.0, refer to the documentation included with the ODBC 3.0 SDK. SMB Signing Service Pack 3 includes an updated version of the Server Message Block (SMB) authentication protocol, also known as the Common Internet File System (CIFS) file sharing protocol. The updated protocol has two main improvements: it supports mutual authentication, which closes a "man-in-the-middle" attack, and it supports message authentication, which prevents active message attacks. SMB signing provides this authentication by placing a digital security signature into each SMB, which is then verified by both the client and the server. In order to use SMB signing, you must either enable it or require it on both the client and the server. If SMB signing is enabled on a server, then clients that are also enabled for SMB signing will use the new protocol during all subsequent sessions and clients that are not enabled for SMB signing will use the older SMB protocol. If SMB signing is required on a server, then a client will not be able to establish a session unless it is enabled for SMB signing. SMB signing is disabled by default on a server system when you install the Service Pack; it is enabled by default on a workstation system when you apply the Service Pack. For information on how to configure SMB signing, go to the Microsoft Knowledge Base at http://www.microsoft.com/kb/ and search for the following article: Q161372 -- How to Enable SMB Signing in Service Pack 3. Note: SMB signing will not work with the direct host IPX protocol. This is because the direct host IPX protocol modifies SMBs in a way that is incompatible with signature-enabled SMBs. This incompatibility will be most obvious when you have direct host IPX clients and you require SMB signing on the server. Requiring SMB signatures on the server will cause the server to not bind to the direct host IPX interface, which will then force all connections to the server to be signed. If you disable the NWLink binding on the server then you will be able to use SMB signing. Also, SMB signing will impose a performance penalty on your system. Although it doesn't consume any more network bandwidth, it does use more CPU cycles on the client and server side. For more information on SMB signing, see the Microsoft FTP site at ftp://ftp.microsoft.com/developr/drg/CIFS/sec.htm. For general information on the CIFS protocol, see the Microsoft Web site at http://www.microsoft.com/intdev/cifs/. Password Filtering This Service Pack includes a password filter (Passfilt.dll) that allows system administrators to increase password strength. This filter is copied to %system root%\SYSTEM32 when the Service Pack is installed on the system. The password filter should be copied to the primary domain controller for the domain, and to any backup domain controllers in the event the server role in the domain changes. To use the password filter, the following registry entry must exist. If it doesn't exist you must create it. WARNING: Using the registry editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT. Microsoft cannot guarantee that any problems resulting from the use of the registry editor can be solved. Use this tool at your own risk. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa Value: Notification Packages Type: REG_MULTI_SZ Data: Passfilt.dll Notification Packages contains a list of DLLs to be loaded and notified of password changes and password change requests. You can audit the loading of Notification Packages by setting the audit policy in User Manager. To do this, start User Manager and then click Audit on the Policies menu. In the Audit Policy dialog box click Audit These Events and then enable Restart, Shutdown, and System by selecting the Success and/or Failure check boxes. Passfilt.dll implements the following password policy: 1. Passwords must be at least 6 characters long. 2. Passwords must contain characters from at least 3 of the following 4 classes: Class Examples ----- -------- English Upper Case Letters A, B, C, ... Z English Lower Case Letters a, b, c, ... z Westernized Arabic Numerals 0, 1, 2, ... 9 Non-alphanumeric characters .,;:*&%! 3. Passwords may not contain your user name or any part of your full name. Custom password filter DLLs can be written to implement different password rules. For more information, see the Microsoft Knowledge Base article Q151082 Password Change Filtering & Notification in Windows NT. You can access the Knowledge Base at http://www.microsoft.com/kb/. Restricting Anonymous User Access Windows NT has a feature where anonymous logon users can list domain user names and enumerate share names. Some customers who want enhanced security have requested the ability to optionally restrict this functionality. Service Pack 3 provides a mechanism for administrators to restrict the ability for anonymous logon users (also known as NULL session connections) to list account names and enumerate share names. In addition, Service Pack 3 has a feature that restricts anonymous logon users from connecting to the registry remotely. After Service Pack 3 is installed, anonymous users cannot connect to the registry and cannot read or write any registry data. Also, a new built-in group known as Authenticated Users is created when you install Service Pack 3. The Authenticated Users group is similar to the Everyone group, except for one important difference: anonymous logon users (or NULL session connections) are never members of the Authenticated Users group. For more information on these new features, including information on configuring the registry to restrict anonymous user access to list domain user names and enumerate share names, go to the Microsoft Knowledge Base at http://www.microsoft.com/kb/ and search for the following article: Q143474. Using a System Key to Strongly Encrypt Password Information Service Pack 3 provides the capability to use strong encryption techniques to increase protection of account password information stored in the registry by the Security Account Manager (SAM). Windows NT stores user account information, including a derivative of the user account password, in a secure portion of the registry protected by access control and an obfuscation function. The account information in the registry is only accessible to members of the administrators group. Windows NT, like other operating systems, allows privileged users who are administrators access to all resources in the system. For users who require enhanced security, strong encryption of account password derivative information provides an additional level of security to prevent administrators from intentionally or unintentionally accessing password derivatives using registry programming interfaces. The strong encryption capability in Service Pack 3 is an optional feature. Strong encryption protects private account information by encrypting the password data using a 128-bit cryptographically random key, known as a password encryption key. Administrators may choose to implement strong encryption by defining a system key for Windows NT. To do this, administrators can run a utility called Syskey.exe. For more information on using Syskey.exe to configure a system key, go to the Microsoft Knowledge Base at http://www.microsoft.com/kb/ and search for the following article: Q143475. Win32 APIs and SDK for Service Pack 3 Service Pack 3 includes several new APIs, including two Win32 APIs pertaining to spin counts on critical sections (InitializeCriticalSectionAndSpinCount() and SetCriticalSectionSpinCount()). To develop applications that take advantage of these new APIs, a Service Pack 3 SDK will be available on the Microsoft Web site at: http://www.microsoft.com/msdn/sdk 1.2 Support for PowerPC Platform -------------------------------- Microsoft is in the process of phasing out all Windows NT-related development for the PowerPC architecture. Because of this, there are no PowerPC files included in Service Pack 3 for Windows NT 4.0. Microsoft plans to continue providing technical support for customers who use Windows NT 4.0 on the PowerPC architecture. 1.3 Downloading and Extracting the Service Pack ----------------------------------------------- If you have downloaded this Service Pack from an FTP site or a Web site, you should read the release notes completely before you extract and install the Service Pack. After downloading the Service Pack, you will have a compressed executable file (for example, nt4sp3_i.exe) on your hard drive. To extract this file and begin the installation process, type nt4sp3_i.exe at the Command Prompt or double-click the file from NT Explorer. You can also extract the file into the current directory without launching the installation program by using the Command Prompt switch /x (for example, at the Command Prompt, type nt4sp3_i /x). 2.0 INSTALLATION INSTRUCTIONS FOR WINDOWS NT 4.0 SERVICE PACK 3 --------------------------------------------------------------- 2.1 Before You Install the Service Pack --------------------------------------- Close all active debugging sessions before installing this Service Pack, otherwise the Update program will be unable to replace system files that are in use. If a file is in use when you install the Service Pack, a dialog box will appear in which you can choose to cancel the installation or skip the file copy. We recommend you choose to cancel the installation, and then run Update.exe again, being sure to select the uninstall option. Close all active sessions on the system, and then run Update.exe again to install the Service Pack. Also, to maximize the ability to recover the system in the event of installation failure, it is recommended that you do the following before installing the Service Pack: 1. Update the system Emergency Repair disk using the Rdisk.exe command with the /s option. 2. Perform a full backup of the system, including the system registry files. 3. Disable any non-essential third-party drivers and/or services (that is, drivers and services that are not required to boot the system). 4. Contact the original equipment manufacturer (OEM) that provided the driver or service for the updated versions of the file(s). If you have installed a pre-release version of Microsoft Internet Explorer 4.0 prior to installing this Service Pack, you must remove the pre-release version of Internet Explorer 4.0 from your computer before you install the Service Pack. You may then reinstall Internet Explorer after successfully completing the Service Pack 3 installation. This will not be necessary with the retail release of Internet Exporer 4.0. Upon retail release, Microsoft Internet Explorer 4.0 will be made available to customers on the Microsoft Web site. Users of NEC Versa 6050 or 6200 Series notebook computers that shipped preinstalled with Windows NT version 4.0 should select "Yes" when Service Pack 3 update.exe prompts you to replace the hal.dll file. If you are running SystemSoft's CardWizard for Windows NT (support for PCMCIA) or PowerProfiler for Windows NT (support for Advanced Power Management), you must complete critical pre-installation procedures prior to installing this Service Pack. Otherwise, your computer may no longer boot after installation of Service Pack 3. These procedures can be found in the product section at http://www.systemsoft.com. Advanced Power Management is not supported by Windows NT version 4.0. As a result, Microsoft recommends that you remove Advanced Power Management features before installing this Service Pack. 2.2 Installing the Service Pack ------------------------------- To install the Service Pack from the compact disc: 1. Insert the Service Pack compact disc into your CD-ROM drive. 2. If a Web page opens in your browser after you insert the compact disc, click Windows NT Service Pack, and then click Install Service Pack. 3. When you are asked whether you want to open the file Spsetup.bat or save it to disk, click Open and then follow the instructions that appear on the screen. Note: To use the uninstall feature of this Service Pack, you must create an Uninstall directory during the initial installation. Also, if you are reapplying the Service Pack after installing new software or hardware, you must choose to create a new uninstall directory. To indicate this, you must click "Yes, I want to create an Uninstall directory" when you are prompted. For further information, see Section 2.3 and 3.2. 4. If a Web page doesn't automatically open when you insert the compact disc, open the Command Prompt window and change the directory to the drive letter associated with the CD-ROM drive. 5. Change the directory to \i386 or \ALPHA (depending upon whether you have an Intel or ALPHA CPU), and type UPDATE. 6. Follow the instructions that appear on the screen. Note: To use the uninstall feature of this Service Pack, you must create an Uninstall directory during the initial installation. Also, if you are reapplying the Service Pack after installing new software or hardware, you must choose to create a new uninstall directory. To indicate this, you must click "Yes, I want to create an Uninstall directory" when you are prompted. For further information, see Section 2.3 and 3.2. To install the Service Pack from a network drive: 1. At the Command Prompt, type the command to connect to the network drive which has the Service Pack files. 2. Change the drive letter to that network drive. 3. Change directory to \i386 or \ALPHA (depending upon whether you have an Intel or ALPHA CPU), and then type UPDATE. 4. Follow the instructions that appear on the screen. Note: We recommend that you choose to create an Uninstall directory the first time you install the Service Pack. Also, if you are reinstalling the Service Pack after installing new software or hardware, you must choose to create a new Uninstall directory. To indicate this, click "Yes, I want to create an Uninstall directory" when you are prompted. For further information, see Section 2.3 and 3.2. 2.3 Service Pack Uninstall --------------------------- This Service Pack contains an uninstall feature that you can use to restore your system to its previous bootable state. To enable the uninstall option, you must create an Uninstall directory the first time you run Update.exe. To do this, when prompted, click "Yes, I want to create an Uninstall directory." A subdirectory in your Windows NT directory will be created. This requires at least 60 MB of free space on the drive on which Windows NT is installed. To return your system to a previous bootable state, run Update.exe and click "Uninstall a previously installed Service Pack." After your system has restarted, the Update.exe program will replace the files updated by the Service Pack with the files from the previous installation and will return your registry settings to what they were before Service Pack 3 was installed. Note: If you install any applications that require Service Pack 3 or have bug fixes contained in Service Pack 3, performing an uninstall could adversely affect those applications. Note: If you plan to install an older service pack after uninstalling Service Pack 3, take note of the following important precaution. Service Pack 3 modifies the Security Account Manager (SAM) database such that older versions of the SAMSRV.DLL and WINLOGON.EXE files no longer recognize the database structure. Therefore, the uninstall process does not restore these files when uninstalling Service Pack 3. If you install a prior service pack (e.g., Service Pack 2) after uninstalling Service Pack 3, click "No" on the "Confirm File Replace" dialog boxes that ask if you wish to overwrite SAMSRV.DLL and WINLOGON.EXE. If you overwrite the newer files with their older versions, you will be unable to logon to the system. 3.0 USER NOTES --------------- 3.1 Emergency Repair Disk ------------------------- If you use the Windows NT Emergency Repair Disk to repair your Windows NT system at some time after you install the Service Pack, you will need to reinstall the Service Pack after the repair is completed. This is because the Emergency Repair Disk repairs your system by restoring your original Windows NT 4.0 setup. After the repair has completed, simply follow the Installation Instructions (section 2.0) to reinstall the Service Pack. For more information on using the Windows NT Emergency Repair Disk utility, go to the Microsoft Knowledge Base at http://www.microsoft.com/kb/ and search for the following article: Q146887. Note: To use the Emergency Repair Disk utility, you must have the updated version of Setupdd.sys. The updated version is contained in Service Pack 3. To update your version of Setupdd.sys, copy Setupdd.sys from the Service Pack to your setup boot disk #2. This will replace the older version of Setupdd.sys with the updated version. For more information, go to the Microsoft Knowledge Base at http://www.microsoft.com/kb/ and search for the following article: Q158423. 3.2 Adding New Components to the System --------------------------------------- If you change or add new software or hardware components to your system after you have installed the Service Pack, you need to install the Service Pack again. This is because the files taken from the original Windows NT 4.0 disk set may not be the same as the files on the Service Pack disk set. You cannot install new components directly from the Service Pack media (such as a new keyboard or printer driver). You must install new components from the original product media and then reinstall the Service Pack. For example, if you install the SNMP service after installing Service Pack 3, you will need to reinstall the Service Pack. If you fail to do so, you will receive the error "Entrypoint SnmpSvcGetEnterpriseOID could not be located in snmpapi.dll." This is because some of the files in the SNMP service have been updated in the Service Pack and you have a version mismatch. Reinstalling the Service Pack fixes the problem by copying the newer versions of the files to your system. Note: If you are reinstalling the Service Pack after installing new software or hardware, you must choose to create a new uninstall directory. To indicate this, click "Yes, I want to create an Uninstall directory" when you are prompted. 3.3 Installing Symbol Files from the Compact Disc ------------------------------------------------- Each program file in Windows NT has a corresponding symbol file that is used to find the cause of kernel STOP errors. To install the symbol files corresponding to the new binaries in Service Pack 3, do the following (assuming your CD-ROM drive is D:, your symbol files are located in the C:\WINNT\SYMBOLS directory, and you are installing the files for an x86 machine): XCOPY /S /U /D D:\SUPPORT\DEBUG\I386\SYMBOLS C:\WINNT\SYMBOLS This will copy the Service Pack 3 .dbg files over the existing versions of these files. The XCOPY command shown will copy only those .dbg files that are already installed (/U switch), and only those with a more recent time-date stamp (/D switch). For more information about debugging on Windows NT, see Chapter 39, "Windows NT Debugger," in the Microsoft Windows NT 4.0 Workstation Resource Kit. 3.4 Remote Access Service PPP CHAP MD5 Authenticator Support ------------------------------------------------------------ Service Pack 3 provides limited PPP MD5-CHAP authenticator support to the Remote Access Server, which may be useful for small user-count environments using non-Microsoft PPP dial-in clients. The support is local to a given RAS server. The MD5 account information is stored in the RAS server registry and is not integrated or synchronized with the User Manager account database. Integrated support will appear in a later release, at which time this limited support may be removed. The local MD5-CHAP authenticator is enabled by creating the MD5 key below and adding "account" subkeys of the form [<domain>:]<user>, with subvalue "Pw" containing the account password. The ":" notation is used instead of "\" due to the syntax rules of registry keys. The 'domain:' is optional and typically omitted. MD5-CHAP will not be negotiated (old behavior) when the MD5 key does not exist (default). HKLM\SYSTEM\CurrentControlSet\Services\RasMan\PPP\CHAP\MD5 [<domain>:]<user>(REG_SZ)Pw 3.5 Microsoft DHCP Server -------------------------- This version of the Microsoft DHCP Server modifies the format of the DHCP database. You should back up the contents of your %windir%\system32\dhcp directory prior to upgrading. The address conflict detection feature can limit the throughput of Microsoft DHCP Server. For improved performance, reduce the number of ping retries in the Server Properties dialog box. This feature is disabled by default. Address conflicts are indicated by the replacement of the machine name with "BAD_ADDRESS." If a Unique Identifier is specified for the address in the Client Properties dialog box, then the address was declined by the client. If the Unique Identifier is not specified, then the address conflict was detected by the DHCP Server. Microsoft DHCP Server can be configured to set a client's default gateway equal to its IP address. This causes the client to use the Address Resolution Protocol (ARP) for all IP addresses on the local subnet and is useful for routerless networks. To enable this feature for all clients in a scope, add the following value to the registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DHCPServer \Subnets\a.b.c.d\SwitchedNetworkFlag=1 (REG_DWORD) This version of Microsoft DHCP Server supports BOOTP clients. BOOTP addresses currently must be reserved in advance by creating an IP address reservation. Future versions of Microsoft DHCP Server will be capable of leasing dynamic addresses to BOOTP clients. BOOTP clients that do not specify the parameter request list option ( 55 ) can still retrieve the following options from this release of Microsoft DHCP Server: 1 Subnet Mask 3 Router 5 Name Server 12 Host Name 15 Domain Name 44 NetBIOS over TCP/IP Name Server 45 NetBIOS over TCP/IP Datagram Distribution Server 46 NetBIOS over TCP/IP Node Type 47 NetBIOS over TCP/IP Scope 48 X Window System Font Server 49 X Window System Display Manager 69 SMTP Server 70 POP3 Server 9 LPR Server 17 Root Path 42 NTP Servers 4 Time Server In order to obtain other options, the client must specify option 55 in the BOOTP request. DHCP Server will return the options in the order listed above. DHCP Server will return as many options as will fit in response packet. The activity log feature creates a text log file of all DHCP Server activity. The file is located at: %windir%\system32\dhcp\dhcpsrv.log When the activity log feature is enabled this file will be kept open by DHCP Server while the Server is running. To delete the activity log file you must first stop DHCP Server, using the command: NET STOP DHCPSERVER If available disk space becomes low, the activity log will pause until sufficient disk space becomes available. You must also stop and restart the DHCP Service after enabling or disabling Logging, Superscope, or DHCP Decline support. 3.6 Unencrypted Passwords No Longer Sent by Default --------------------------------------------------- Connecting to SMB servers (such as Samba and LAN Manager for UNIX) with an unencrypted (plain text) password fails after upgrading to Windows NT 4.0 Service Pack 3. This is because the SMB redirector in Service Pack 3 handles unencrypted passwords differently than previous versions of Windows NT. Beginning with Service Pack 3, the SMB redirector will not send an unencrypted password unless you add a registry entry to enable unencrypted passwords. For information on how to modify the registry, search the Microsoft Knowledge Base at http://www.microsoft.com/kb/ for the following article: Q166730. This article also contains information on how to change the Service Pack setup process so that unencrypted passwords are enabled after the Service Pack is installed. 3.7 Hardware Compatibility with Windows NT 4.0 ---------------------------------------------- For a current list of computers and other hardware peripherals supported by Windows NT 4.0, please see the Windows NT Hardware Compatibility List at http://www.microsoft.com/hwtest. 4.0 LIST OF BUGS FIXED IN WINDOWS NT 4.0 SERVICE PACK 3 -------------------------------------------------------- All bug fixes contained in Service Pack 3 are listed below. You can query the Microsoft Knowledge Base to find an article about a specific bug by using the Qxxxxxx number that is assigned to the bug. The Microsoft Knowledge Base can be found on the Microsoft Web site at http://www.microsoft.com/kb/ Service Pack 1 -------------- Q78303 Intermittent File Corruption Problem Q142653 STOP Message Occurs Calling GetThreadContext/SetThreadContext Q142654 Winsock Memory Access Violation in Ws2help.dll Or Msafd.dll Q142655 Stop Message Appears After Deleting ProductOption Registry Key Q142656 Internet Explorer 3.0 on RISC Computer Cannot Connect to Host Q142657 Data Corruption on Windows NT 4.0 Q142658 Internet Information Server Runs Out of Memory Q149903 File Manager Performs a Move Instead of a Copy Q156832 STOP Message when IBM Warp Client Connects to Windows NT 4.0 Service Pack 2 -------------- Q108261 Windows NT Hangs on Shutdown with Certain PCMCIA Devices Q140065 Multi-Processor Systems Randomly Restart or Stop Responding Q141375 Winstone 97 May Fail on Windows NT 4.0 Q141708 RAS Client IP Addresses Not Returned to Static Address godot Q142634 Multiple Processes Are Able to Open the Same Winsock Port Q142641 Internet Server Unavailable Because of Malicious SYN Attacks Q142648 STOP 0x00000024 in Ntfs.sys Q142656 Internet Explorer 3.0 on RISC Computer Cannot Connect to Host Q142671 Backup Fails on Certain Directories Due to Lack of Permissions Q142675 CSNW Sends Packets Greater Than Negotiated Maximum Packet Size Q142686 First Line of Print Job Lost When Printing Using Lpdsvc Q142687 Windows NT 4.0 Not Able to Read Some Compact Discs Q142847 Bugcheck 0x1e Caused by Isotp.sys Driver Q142872 Length of PDC Name May Affect Performance on a Domain Q142903 Windows NT Ndis.sys and Netflx3.sys Performance Improvement Q146336 Joystick in Windows NT 4.0 Does Not Work Properly Q147363 AlphaServer Hangs on Install of Windows NT Version 4.0 Q147497 Matrox Video Driver May Fail on Alpha-based Computers Q147552 Backup Always Reports Time as PM Q148378 Setup of RAS with Multiple Modems Gives Slow Performance Q148525 Removable Media Does Not Eject if Formatted in NTFS Q148602 Running SNA Server 2.11 on the Windows NT 4.0 Q150815 Windows NT May Fail to Boot on Toshiba Portable Computers Q153665 SPX Data Stream Type Header May Reset Unexpectedly Q154556 Delegation Requires a Stop and Restart of the DNS Server Service Q154620 Windows NT 4.0 DNS Server Loses the Forwarders Settings Q154784 Windows NT Operating System SNMP OID Incorrect Q155883 NT 4.0 Breaks SNA Server 2.x Server Communication Over IP Q156091 Access Violation with Long NDS Context in CSNW/GSNW Q156095 Replace Command with Space Character in the Path Does Not Work Q156276 Cmd.exe Does Not Support UNC Names as the Current Directory Q156324 Device Failure Message with Microchannel Network Adapter Q156520 Logon Validation Fails Using Domain Name Server (DNS) Q156578 Cannot Cancel Print Job on Windows NT 3.51 Shared Printer Q156735 WOW Applications Stack Fault When Launched by a Service Q156746 Print Jobs Are Deleted When Printer Is Resumed After Restart Q156750 AddGroupNameResponse Frame from WinNT May Cause WFWG to Hang Q156884 Problems Saving Event Viewer Log from Windows NT 4.0 to 3.51 Q156958 Serial Service Won't Stop with Serial Printer Installed Q157279 Nwrdr.sys Fails Reading File with Execute Only Attribute Q157289 Memory Leak Using RegConnectRegistry API Q157494 PPC 4.0 Cirrus Driver Fails to Redraw & Fill Objects Correctly Q157621 Personal Groups Not Visible If %Systemroot% Is Read-Only Q157673 Policy Not Updated on Workstation Q158142 WM_DDE_EXECUTE API Causes a Memory Leak in the WOW Subsystem Q158387 RAS Server Cannot Use DHCP to Assign Addresses w/ PPTP Filtering Q158587 16-Bit Named Pipe File Open Leads to WOW Access Violation Q158682 Shortcuts Created Under NT 4.0 Resolve to UNC Paths Q158707 DDE Destroy Window Code May Stop 0x0000001e in Windows NT 4.0 Q158796 Macintosh Clients Connected to WinNT Server Appear to Hang Q158981 IBM Thinkpads 760ED and 760ELD May Hang During Shutdown Q158994 Windows NT 4.0 Fails to Replicate to Backup Domain Controllers Q159053 NTFS Stream Limitation in Windows NT 4.0 Q159066 A Client Crash May Prevent an NTFS Volume Dismount Q159071 NTFS Does Not Prevent a File Deletion During Rename Q159072 An Account That Still Has System Access May Be Deleted Q159073 Screen Corruption on Dell Laptops Using Cirrus Video Q159075 Compression Is Not Supported on Quantum 4000DLT Q159076 Windows NT 4.0 May Hang or Crash in Win32k.sys During Setup Q159085 Windows NT Kernel Crashes While Processing WM_NCCREATE Q159090 Delphi 2.00 and 2.01 Users Encounter Error 998 Q159091 German Time Zone Results in Incorrect Log Times Q159092 Mouse Buttons Not Swapped on German Windows NT 4.0 Q159093 Windows NT Muldiv() Function Returns Incorrect Value Q159095 STOP 0x0000001E in Win32k.sys When Exiting Applications Q159098 WinNT 4.0 Resource Kit Utility "Remote Console" Client Fails Q159105 Cannot Open Truncated File Names from Compact Discs Q159107 Access Violation in AddAtom Inside Kernel32.dll Q159108 SMP Full Duplex Adapter Configuration May Cause a Blue Screen Q159109 ExitWindowsEx Does Not Work With NEC Power Switch Service Q159110 CDFS Does Not Complete IRPs Correctly Q159111 Multiprocessor Computer Hangs Under Stress Using Halsp.dll Q159119 NTFS Generates Cross-Linked Files Q159127 Bugcheck in Windows NT While Running POSIX Applications Q159129 OpenGL Access Violation with Invalid OpenGL Context Q159137 Moving Files Can Corrupt NTFS Partition Q159141 CDFS Incorrectly Creates Short File Names for Some Files Q159144 Dongle May Not Function Under Windows NT 4.0 Q159203 Unattended Install Prompts for New IP if Zero Is in Address Q159204 IoCompletionPort Causes Blue Screen Error Q159205 SFM File Type and Creator Properties Invalid Q159206 Reactivation of Paused Print Queues Deletes Print Jobs Q159309 Windows NT 4.0 RAS Not Releasing Static IP Addresses Q159352 RPC over NetBIOS Programs Can't Call from Server to RAS Client Q159447 Applications Testing for Directory Existence Fail Q159449 DNS Server Glue Data Is Deleted Q159450 Second Recursive Query Sent from DNS Server Is Broken Q159594 Missing Eastern Europe FontSubstitutes in Registry Q159910 Memory Corruption on a Windows NT Alpha Platform Q159970 Slow List of Folders and Files with CSNW Q159971 SetTimer() API Causes Memory Leak in the WOW Subsystem Q159972 WinNT 4.0 May Not Return Valid Response for SMB Search Command Q160015 2D Vector Performance on WinNT 4.0 Slower Than on 3.51 Q160055 Warning Event ID 4010 Generated on Windows NT LPD Server Q160189 CSNW Cannot See More Than 32 Volumes Per Server Q160190 RasSetEntryProperties Does Not Save a Full Path Script Name Q160354 Mouse and Keyboard Can Disappear when Replacing Drivers Q160370 Stop Screen 0x00000050 Caused by Fs_rec.sys Q160372 Intermittent File Corruption when Compiling on NTFS Partition Q160373 Adaptec Aic78xx Does Not Issue Multiple Tagged Commands Q160377 File Size Data Does Not Remain Consistent After Defrag on NTFS Q160392 Systems with 4 GB or More of RAM Cannot Boot Windows NT 4.0 Q160398 Cannot Read Files Greater than 4 GB Q160404 Madge EISA Stops Responding on Alpha in Windows NT 4.0 Q160405 Video Memory Not Correctly Detected on Dell Latitude Laptops Q160420 Changing Colors on Cirrus Logic Cards to 65k Can Cause Stop Q160459 DNS Delegations May Fail Q160470 Stop 0x0000000a IPX Sends Browser an Incomplete Datagram Q160493 NWLNKRIP Data Structures Corruption when Using a Demand Dial NIC Q160494 DNS Zone Transfer Fails After WINS Record Added Q160497 Cache File Entries Disappear Q160508 Unnecessary DNS Zone Transfers Q160518 Zone Files in Multiples of 4 KB May Cause Access Violation Q160583 Windows NT 4.0 with More Than 4 Processors May Stall & Reboot Q160601 Bad Parameters Sent to Win32k.sys May Cause Stop Message Q160603 No Output from DBMON Using OutputDebugString While Debugging Q160604 Access Violation in security!SspQueryContextAttributesW Q160606 Performance Enhancements for SQL Server Under Windows NT Q160610 READ_REGISTER_ULONG Doesn't Preserve ULONG Semantics on Alpha Q160649 STOP 0x0000000A in Ntoskrnl.exe at Logon to Windows NT 4.0 Q160650 Blue Screen When Closing Kernel Mode Handles from User Mode Q160651 OpenGL May Cause an Exception 0xc0000090 Q160653 NTFS Fails Assertion Under High Stress During Transfer Q160657 16-bit Version of Visual Basic 4 May Hang Windows NT 4.0 Q160658 Stop C0000021A Using MoveFileEx MOVEFILE_DELAY_UNTIL_REBOOT Q160670 FPSCR is Not Being Saved Across Thread Context Switches Q160671 Stop 0x0000007F May Occur on Compaq SystemPro Q160678 Possible Access Violation in Win32k.sys Under High Stress Q160702 Event 2006 Errors in Xcopy from WinNT 4.0 to OS/2 3.0 Client Q160732 FIX: SQL Server 6.5 Service Pack 2 Fixlist (Part 2 of 2) Q160791 Excel Charts Lose Color When Pasted into Word Q160840 Sharing Violation When Accessing User Profiles Q160894 Incoming Fax Jobs Do Not Appear in Print Queue Q160964 0x0000001e When Printing Certain Documents from Windows NT 4.0 Q161201 NTBackup.exe from WinNT 3.51 SP5 Causes Verify Errors Q161802 Stop 0x0000000A During Create File SMB Q161990 How to Enable Strong Password Functionality in Windows NT Q162157 Cyberbit Unicode Font Does Not Return Correct Charset Q163055 DHCP Client May fail with NT 4.0 SP2 Multinetted DHCP Server Q163736 Access Violation in DNS Manager when deleting cached domain Q163772 Nested "for" Loops Using the '~' Operators Does not Work Q163773 Brief 3.0 in NTVDM Consumes 100% Processor Q163837 SNMP query to Windows NT returns same value for NTS and NTW Service Pack 3 ------------------- Q135707 Programs Run at Priority Level 15 May Cause Computer to Hang Q139506 Connections to Share-Level Server May Fail Q140419 Name Release Notfications Not Sent to WINS on Shut Down Q140967 Changing Password in User Manager Does Not Permit Logon Q141189 BUG: Wrong Error Code on NetBIOS Call When Using NWNBLNK Q141381 Retail SP3 Clients Cannot Connect to SP3 Beta 1 Servers Q142047 Bad Network Packet May Cause Access Violation (AV) on DNS Server Q142609 Corruption Problem When Running DPMI Application Q143470 Run Logon Scripts Synchronously Not Applied to New Users Q143472 FPNW Blue Screens Accessing or Creating Folders with Long Paths Q143473 Unattended Setup Stops and Says Press Any Key to Shut Down Q147012 Activating /W Switch to Prevent Rebooting in WinNT Q149538 System Restarts Every 5 Hours if Workstation to Server Upgrade Q151926 Delayed WinLogon When Drive Mapped to Local Share Q153220 DHCP Manager Error "No More Data Is Available" Q154710 Cannot View Long File Names on Network in 16-Bit Programs Q154939 CreateQueueJobAndFile Fails w/ Queues Other Than Print Queue Q156410 STOP 0x1E or 0x50 Error on Multiprocessor DEC Alpha Computer Q157077 Netstat Slow to List Large Numbers of Connections Q157745 Command Extensions Cause Access Violation in Cmd.exe Q158433 Re-creating Admin Shares Causes Exception Error Q158548 Sysdiff Changes Dates on Files It Applies to WinNT Q159060 Mouse Cursor Freezes or Fails with Microsoft IntelliMouse Q159176 XADM: Store Stops Responding with High CPU Usage Q159330 Map.exe Does Not Set Environment Variables Correctly Q159998 Error Message: Error Access Is Denied Q160386 Incorrect MediaType Parameter on IBM PCMCIA Token Ring Card Q160405 Video Memory Not Correctly Detected on Dell Latitude Laptops Q160990 DHCP Server Offers Duplicate IP Addresses for Windows NT Q161038 Winsock Apps Fail on First Attempt at NetBIOS Name Resolution Q161368 Service Pack 2 May Cause Loss of Connectivity in Remote Access Q161432 WINS Static Entries Overwritten by Duplicate Group Names Q161644 STOP 0x0000000A Sfmsrv.sys When Copying File to Mac Volume Q161714 IPX Doesn't Function Correctly over Token Ring Source Routing Q161830 Message from Unix Using Smbclient w/ Long Username Crashes Q161838 Programs That Lock 0 Bytes at Byte 0 Lock Entire File Q162077 Stop: 0x0000000A when Selecting NDS Map Objects Q162096 SET: Drivers Fail to Load When I/O Address Is Above 0xFFF Q162189 Macintosh Clients May Hang Temporarily with Multiple Mac Volumes Q162396 Problem with DHCP Decline Feature in Service Pack 2 Q162404 Service Pack 5 Breaks Microsoft Mail Shared Using FPNW Q162471 Windows NT 4.0 May Not Recognize SCSI Devices Using Nonzero LUNs Q162563 WINS Restore Fails on Windows NT Server 4.0 Q162566 FPNW Causes Incomplete Display When Executed from Windows 95 Q162567 Telnet to Port 135 Causes 100 Percent CPU Usage Q162616 Extra Form Feed with Passthrough Functions to Text Only Driver Q162657 Choosing Default Domain Name for RAS Client Authentication Q162774 Policy Editor Crashes When Using Large Custom ADM Files Q162775 Access Violation in SPOOLSS when Printing to a Serial Printer Q162778 WINS May Report Database Corruption w/ More Than 100 Owners Q162881 RIP Table Sent While Shutting Down When Silent RIP Set Q162926 STOP: 0x0x0000000A After Call to GlobalAddAtom() Q162927 Telnetting to Port 53 May Crash DNS Service Q163129 RAS Client Fails to Connect to Service Pack 2 Using NetBEUI Q163143 STOP: 0x0000001E with Status C000009A Q163196 New Windows NT PING.EXE Prevents Hanging Other TCP/IP Stacks Q163202 Limit of the Number of Simultaneously Open Root Storage Files Q163203 Remote Access Autodial Manager may fail for second user logon Q163213 WebSTONE Benchmark of IIS May Show Poor Results for MP Systems Q163214 RAS Script with Set IPADDR May Fail with 3Com Defender Add-on Q163261 DEC ALPHA WinNT 4.0 Servers w/ SP2 Fail to Lease DHCP Addresses Q163267 Delay While Establishing SPX II Connection Q163318 Helpfile Word Lists May Be Rebuilt After Daylight Savings Change Q163333 Autosynch Compatible COM Applications May Fail w/ FIFO Enabled Q163383 Failure to Obtain IP Address Via DHCP on Token Ring w/ SP2 Q163431 16-Bit Application Stops Responding When Run on WinNT 4.0 Q163508 STOP 0xA in Ntfs.sys During Reboot Q163512 Error: The Mapi Spooler has Shut Down Unexpectedly Q163525 Delay When Saving Word 7.0 File to Windows NT 4.0 Server Q163538 NTBackup Does Not Properly Eject Tapes on DLT Tape Devices Q163614 HP LaserJet Series II Prints Extra Small Stripes or Points Q163616 Cannot Unlock Workstation If Password Change Cancelled Q163620 STOP 0x50 in Rdr.sys If Pathname Too Long in SMB Q163672 Windows NT 4.0 Setup Fails on ThinkPad 535 Q163687 Winsock Applications May Timeout or Fail with an Error Q163700 IIS Access Violation for Polygon with More Than 100 Vertices Q163714 ATDISK Finds the Same Disk Twice on SunDisk PCMCIA ATA Adapter Q163725 NDIS Driver Fails To Check Functional Address Q163790 RPC Service Stops Responding on UDP Port 135 Q163872 Sysdiff Cannot Delete Files Q163873 Czech Keyboard Layout Has Wrong Mapping Q163874 Pressing CTRL+ALT+DEL When Logging On Can Cause Blue Screen Q163875 Group Policies Not Applied If DC Name Is More Than 13 Characters Q163876 CSNW Clients Cannot Delete Print Jobs on NetWare Print Queue Q163880 COPY Command Causes File Cache to Grow Q163881 Windows NT Does not Display Some Fonts Q163883 NetBT (tag=Nbt8) Corrupts Pool with WinNT 4.0 SP2 Installed Q163891 Microsoft Excel 97 Causes a Windows NT Access Violation Q163892 A Service May Not Set Hooks on 32-bit GUI Applications Q163936 CLOCK Hangs and Consumes 90% CPU When Set to Digital Display Q163969 Event 552: DNS Was Unable to Serve a Client Request Q164014 Slow Exchange Client Logons Due to Deadlock in LSASS Q164121 Corel Fonts Unavailable Outside of English Locale Q164133 Logon Allowed When Access Denied to Mandatory User Profile Q164138 Files in Macintosh Volume Disappear from Macintosh Clients Q164159 Verify Reports Errors When Restoring a Tape Backup Q164161 NTBACKUP Fails to Back up Microsoft Exchange Server Data Q164201 Access Violation Installing IIS Q164211 FPNW Doesn't Convert the Long File Names Correctly Q164260 Compressing and Uncompressing Files Cause File Cache to Grow Q164309 Windows NT Client: Primary/Secondary WINS Servers Switch Q164322 Memory Leak in NetQueryDisplayInformation API Q164350 NEC IDE CD-ROM Drive CDR-1400C Cannot Play Audio CDs Q164352 Stop 0x00000050 in Tcpip.sys Caused by Winsock Applications Q164391 WinNT 4.0 SP2 Atapi Claims IRQ for Unused IDE Channel Q164410 CHGPASS and SETPASS Do Not Prompt For Typing Correction Q164432 Accented Greek Characters Are Not Being Created Q164462 Conner 4 mm DAT Tape Devices Fail After About 30 Seconds Q164491 Stop: 0x0000000A in Rdr.sys When Mailslot Message > 512 Bytes Q164507 Any User Can Log on to FTP Server with Disabled Anonymous Logon Q164542 MGET to an IBM Host FTP Server Returns Garbage Characters Q164546 SCSI Driver Description Truncated in Control Panel Q164595 Duplicate Route Not Removed After Second Redirection Q164600 4 mm DAT Driver Reports DEC TZ9L Supports Setmarks Q164606 Deferred Reconnections to Password Shares May Not Work Q164630 RPC over NetBEUI Fails from WinNT 4.0 RAS to WinNT 4.0 RAS Q164631 Scavenging WINS Database Removes Static Entries Q164639 SNA Windows 95 Fails Logon If Password Change Required Q164702 WINDISK crashes during initialization when Compaq ATAPI PD/CD Q164758 Remote Procedure Call (RPC) Service Access Violation Q164806 CHKNTFS Does Not Exclude FAT Partitions from AUTOCHK on Boot Q164812 Computer Name Truncated When Name Resolution Attempted Q164821 DHCP Server Service May Stop Responding Q164826 Direct Draw Programs May Hang NT 4.0 with S3 968 Video Chipset Q164904 Stop 0x0000000A in NETBT.SYS After Applying Service Pack 2 Q164928 Not All Objects Are Displayed When Browsing NDS Trees Q164938 Event Logging Frozen While Doing Heavy Logging; Services CPU Peg Q164982 Lack of Secondary Address May Cause DNS Service to Hang Q164987 Hard-coded Socket of 451 Causes LANtegrity Software to Fail Q165004 NTVDM Support for Compaq Financial Keyboard Scan Codes Q165245 DDE Client Experiences Intermittent DDE Disconnects Q165314 Grace Logon Remaining Is Not Decremented When Logging to BDC Q165388 Invalid Directory Returned When Attempting to Access FPNW Q165427 Convlog.exe May Cause Access Violation Q165443 NDS Login Script Fails When Checking "If Member Of" Q165456 STOP 0x0000000A in Ntoskrnl.exe Q165483 RasEnumEntries() API Leaks Memory Q165813 16-bit Applications Cause Access Violation in NTDLL.DLL Q165814 Stop: 0x0000001E When Opening My Computer Q165816 STOP 0x0000000A in HAL.DLL on Multiprocessor Computers Q165818 Truncation of Backup Log In Eastern Europe or Russian NT 4.0 Q165946 RasEnumEntries Return Incorrect Number of Phonebook Entries Q165950 Unable to Change Font Cartridge Selection Q165989 GetPeerName() Returns WSAENOTCONN After Select() Returns Success Q166043 DHCPAdmin Incorrectly Writes the BootFileTable in the Registry Q166148 RasSetEntryProperties() Fails to Set Options in Service Pack 2 Q166158 Access Violation Occurs in SPOOLSS.EXE Q166159 Connecting to Windows Network resources from multi-homed machine Q166183 FPNW Server Returns Error When User Opens More Than 256 Files Q166186 OS/2 with TCP\IP May Refuse Socket Connections from Windows NT Q166197 NBTSTAT Error when Using >25 Dialout Devices with RAS Q166222 Dlc.sys Sends Frame Reject (FRMR) and Drops Connection Q166224 SNA Server 802.2 Connection Fails to Reactivate Q166226 Backup of Local Registry Does Not Work With NTBACKUP.EXE /b Q166257 Applications Using OpenGl Cause Access Violation in OPENGL.DLL Q166265 Printing To A Postscript Printer May Cause A STOP 0x0000003b Q166266 STOP 0x0000000A Using OpenNT Commands and Utilities Q166267 Office Shortcut Bar Fonts Appear as Non-Cyrillic on Russian NT Q166311 Memory Leak Retrieving OLE Property Values with Service Pack 2 Q166334 OpenGL Access Violation on Windows NT Version 4.0 Q166421 FPNW Returns Time Stamp with 60 Seconds to Clients Q166423 Access Violation in SERVICES.EXE in EVENTLOG.DLL Q166475 NWLNKSPX Retransmission Problem Over a Slow Link Q166478 Logon Rights Are Not Audited Q166482 DUMPCHK.EXE Incorrectly Reports Some Dump Files as Invalid Q166686 RASDIAL Error w/English Text on Non-English Version of Windows NT 4.0 Q166696 NT 4 Err Msg: "The INF OEMNADDI is missing the referenced file" Q166823 Cannot Connect To AT&T Advanced Server VMS or OSF Print Share Q166834 Lost Record Locks from MS-DOS-based Program to NetWare Server Q166842 CSNW & GSNW Won't Display NetWare Servers via a SAP Seed Server Q166846 Cannot Reconnect to TN3270 Server with Close Listen Sockets Q166874 No Crashdump and Compaq Systems with Smart-2/P (PCI) Controller Q166963 Cannot Communicate with Computer Running NWLink IPX/SPX Q166964 Incorrect File Listing on NetWare Server with DIR /TC Command Q167009 Description of DHCP Server Service Has a Misspelled Word Q167010 Access Violation in CMD.EXE Processing Batch File Script Argument Q167026 Windows NT 4.0 DNS Server Stops Responding To Queries Q167038 RAS Clients Run Winsock and RPC Applications Slowly Q167044 Request From Perfmon Counter Can Cause Excessive Page Faults Q167110 NT 4.0 RAS client slows over time due to lack of resources Q167129 Stop 0x7A or System Lockup in NTBACKUP With MINIQIC Q167130 Fatal System Error in NDIS.SYS Allocating Map Registers Q167362 STOP 0x00000050 in SRV.SYS When Shutting Down Computer For the latest information on bug fixes see: Q150734 List of Bugs Fixed in Windows NT Version 4.0 5.0 ADDITIONAL FIXES AND WORK-AROUNDS -------------------------------------- 5.1 Tape Drive Not Recognized by Windows NT ------------------------------------------- In some instances, after you apply the Service Pack, Windows NT will not be able to load the drivers for a tape drive, which may cause the tape drive to shut down or be inoperable. This is due to a conflict between the ATAPI driver that controls IDE devices and the tape drive controller. To fix the problem, you must set your tape drive controller to a different I/O address. In most circumstances, your tape drive controller will be set to use an I/O address in the range 0x3F0-0x3F8. The ATAPI driver uses I/O address 0x3F6. If your tape drive controller has been assigned to 0x3F6, then you must assign the tape drive controller to an available address. 5.2 File Sharing Problems with Windows 95 ----------------------------------------- In some instances, you may experience "out of memory" problems when you save a file to a shared folder on a Windows 95 machine. You can obtain a fix for this problem at the following Microsoft Web site: http://www.microsoft.com/visualc/download/mfc42cab.htm 5.3 Reinstalling Hilgraeve HyperTerminal Private Edition -------------------------------------------------------- Service Pack 3 contains updates to the HyperTerminal product that shipped with Windows NT 4.0. If you have installed the Private Edition of HyperTerminal from Hilgraeve, Inc., then you need to reinstall the Private Edition after applying Service Pack 3. For more information on installing the Private Edition, go to the Microsoft Knowledge Base at http://www.microsoft.com/kb/ and search for the following article: Q162469. 5.4 Restoring Active Files and the Registry from Tape ----------------------------------------------------- Prior to Service Pack 3, the tape backup utility that shipped with Windows NT 4.0 would not restore active files if the registry was also restored. If you want to restore both the registry and active files, then you must use the version of ntbackup.exe that is included in Service Pack 3 (or newer). To restore the registry and active files from a tape backup: 1. Install Windows NT 4.0 from the release CD or from your network. 2. Replace the old version of ntbackup.exe with the newer version on the Service Pack CD. 3. Run ntbackup.exe and restore the registry and system files from tape. 4. Reboot the system when restore is complete. 5.5 LPR Printing ---------------- LPR printer ports are by default now limited to using 11 TCP/IP ports (721-731) to be RFC compliant. You can change this to have LPR use any TCP/IP ports greater than 1024 by changing a registry setting. For information on configuring the registry for LPR printing, search the Microsoft Knowledge Base at http://www.microsoft.com/kb/ for the following article: Q141708. 5.6 Updating Audio Drivers -------------------------- If you are not receiving audio from a Crystal Semiconductor audio chip or a Creative Labs Sound Blaster AWE32 PnP Wavetable Synthesizer, you might have to install the updated drivers for these devices. For detailed information on updating these drivers, go to the Microsoft Knowledge Base at http://www.microsoft.com/kb/ and search for the following article: Q143155. 6.0 NOTES FOR USERS OF THE 128-BIT VERSION OF WINDOWS NT 4.0 ------------------------------------------------------------- All encryption-related components in this version of Service Pack 3 are limited to exportable 40-bit cryptography. During installation, you will be prompted when an existing component on your system containing 128-bit encryption is about to be replaced by an updated component with 40-bit encryption. If you require 128-bit support, you should click the "Skip" button on the dialog box when prompted during Service Pack setup. A version of this Service Pack with 128-bit encryption is available on request. See the following ordering information. Microsoft Internet Explorer supports both 40-bit and 128-bit encryption depending on the version (40-bit or 128-bit) of the file Schannel.dll. If you accidentally overwrite the 128-bit version of Schannel.dll with the 40-bit version included in this Service Pack, you can copy the original from your Windows NT Version 4.0 compact disc into the windir%\system32 directory to restore it. 7.0 HOW TO OBTAIN THE NORTH AMERICAN (128-BIT) VERSION OF SERVICE PACK 3 ----------------------------------------------------------------- The North American (128-bit) version of Service Pack 3 is intended for distribution only in the United States and Canada. Export of the North American version of this Service Pack from the United States is regulated by the International Traffic in Arms Regulations (ITAR, 22 CFR 120-130) of the U.S. State Department, Office of Defense Trade Controls. A State Department license is required to export the North American version of Service Pack 3 outside the United States or Canada. Microsoft will distribute the North American (128-bit) version of Service Pack 3 to U.S. or Canadian companies or persons for end-use in the United States or Canada only. Ordering Information and Availability: Customers in the 50 United States and Canada can order the North American (128-bit) version of Service Pack 3 for US $14.95 (CDN $20.95) plus customer service and handling charges of US $5.00 (CDN $7.50). Customers can order the product by phone or mail. By phone or fax: Call (800) 370-8758 or fax to (716) 873-0906. The 800 number is for customers calling in the United States and Canada. By mail in the 50 United States: Microsoft NT Service Pack 3 PO Box 1095 Buffalo, NY 14240-1095 By mail in Canada: Microsoft NT Service Pack 3 PO Box 643 Fort Erie, ON L2A 6M1 Canada Be sure to request Part Number 236-00789. The product will be delivered within four weeks.