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- Farallon Computing, Inc.
-
- Release Notes
-
- Look@Me - A Timbuktu Applet
- Version 1.0 for Windows
- April, 1996
- ================================
-
-
- The release notes include the following sections:
-
- * Installation and compatibility information
-
- * Windows support
-
- * Windows NT information
-
- * TCP/IP information
-
- * Cross-platform information
-
- * Netware information
-
- * Troubleshooting
-
- * Memory configuration issues
-
-
- ===========================================================
- Installation and compatibility information
- ===========================================================
-
- Please review the following topics before installing Look@Me.
-
- NOTE: Look@Me comes in two flavors: a free-standing "applet" and
- a Netscape plugin. Since the applet and the plugin differ only in
- their system requirements and installation procedures (which are
- identified in the next two sections), the applet and the plugin
- will both be referred to as "Look@Me" unless otherwise specified.
-
- ------------------------------------------------------------------------
- The Look@Me applet and the various versions of Windows
- -------------------------------------------------------
- The Look@Me applet currently supports only Windows 3.1, Windows for
- Workgroups (WFW) 3.1.1, and Windows 95. This version does not fully
- support Windows NT. See "Look@Me and Windows NT" below for details.
-
- ------------------------------------------------------------------------
- The Look@Me Netscape plugin, Netscape, and the various versions
- of Windows
- ----------------------------------------------------------------
- The Look@Me Netscape plugin currently supports only 32-bit versions of
- Netscape Navigator running on Windows 95. The Look@Me plugin does not
- support Windows 3.1, WFW 3.1.1, and only partially supports Windows NT.
- See "Look@Me and Windows NT" below for details.
-
- If you have installed the Look@Me plugin and Netscape still doesn't
- recognize it as legitimate, make sure that the file "Nptb2_32.dll"
- is located in the Netscape/Program/plugins folder and restart Netscape.
-
- ------------------------------------------------------------------------
- Look@Me and Windows NT
- ------------------------
-
- Look@Me does not work in both directions when running on a Windows NT
- system. This means that a remote user cannot observe the desktop of a
- Windows NT computer using Look@Me or Timbuktu Pro for Windows.
- However, a Windows 3.1, Windows for Workgroups 3.11, Windows 95, or
- Macintosh computer can be observed from a Windows NT computer.
-
- ------------------------------------------------------------------------
- Look@Me and America Online (AOL)
- ---------------------------------
- Look@Me will not work over an AOL connection. During an AOL session,
- AOL replaces the standard WINSOCK.DLL with a special AOL WINSOCK.DLL.
- Unfortunately, AOL's DLL is not compatible with Look@Me. Once the AOL
- session comes to an end, AOL returns the original WINSOCK.DLL to its
- rightful place, allowing you to use Look@Me with other services.
-
- ------------------------------------------------------------------------
- Look@Me and Timbuktu Pro for Networks, Windows Edition
- -------------------------------------------------------
- You'll need to close Timbuktu Pro for Networks (Windows Edition) before
- installing Look@Me. The two products cannot run @ the same time. After
- installation Look@Me opens automatically. If Timbuktu Pro is running
- when Look@Me is trying to open, there will be a conflict.
-
- As long as you don't try to run both Look@Me and Timbuktu Pro at the
- same time, they will be able to co-exist peacefully on one computer.
-
- ------------------------------------------------------------------------
- Look@Me and Lotus SmartCenter
- ------------------------------
- You'll need to close Lotus SmartCenter before installing Look@Me.
-
- ------------------------------------------------------------------------
- Look@Me and Corel applications
- -------------------------------
- If you are observing a computer that is running a Corel application, you
- may encounter an assortment of color, drawing, text, and fill problems.
-
- ------------------------------------------------------------------------
- Look@Me and the S3 chip set
- ----------------------------
- If you are Observing a computer that is using a video card with an S3
- chip set, you may encounter an assortment of color, drawing, text, and
- fill problems.
-
- ------------------------------------------------------------------------
- Look@Me and Lotus 1-2-3 release 5.0
- -------------------------------------
- If you are Observing a computer that is running Lotus 1-2-3 release 5.0
- under Windows 95, you may notice that the background color is not
- displayed properly in the Observe window. This behavior will not
- interfere with the Look@Me session.
-
-
- ============================================================
- TCP/IP information
- ============================================================
-
- ------------------------------------------------------------------------
- TCP/IP stack options
- ---------------------
- Farallon maintains three categories of TCP/IP stacks: Certified,
- Verified, and Unsupported.
-
- Certified stacks have been subjected to significant stress testing by
- Farallon's Quality Assurance department and have been found to function
- correctly with Look@Me and Timbuktu Pro for Networks.
-
- Look@Me fully supports the following TCP/IP stacks:
- * Microsoft MS/TCP 3.11 and 3.11a
- * Microsoft MS/TCP for Windows 95
- * NetManage Chameleon V4.01 and V4.5
- * Novell LAN Workplace V4.2 and V5.0
-
- Verified stacks have been tested to a lesser degree than Certified
- stacks. Most, if not all, of the Look@Me features operate correctly with
- them. A Verified stack will typically work with Look@Me without
- difficulty. Review this document for specific comments on these stacks.
- Please contact Farallon immediately if you detect a problem with one of
- these IP stacks.
- * Beame & Whiteside V3.2.0.1.
- * Distinct V3.32 - Requires a new WINSOCK.DLL dated: 7/21/95, size:
- 33110 bytes. Contact Distinct technical support.
- * Frontier Super TCP Pro 1.1
- * InterCon TCP/Connect II for Windows V4.00 R3 - Requires Winsock
- patch. Contact InterCon technical support.
- * Microsoft MS/TCP for Windows NT
- * Network TeleSystems TCP Pro V1.03/2.0
- * Spry Internet Office -- Requires a new WINSOCK.DLL. Contact Spry
- technical support.
- * Trumpet V2.0 -- When observing a Macintosh computer, the screen
- redraws very slowly and the computer may hang.
- * TGV MultiNet for Windows V1.1
- * Wollongong Pathway Runtime V4.0 with patches.
- * WRQ (Walker, Richer, & Quinn) Reflection V4.5 and V5.01
- * ftp Software OnNet V1.0, PC/TCP V2.3, and PC/TCP V3.0 -- You will
- need to take the following steps:
- 1. Find the directory in which PCTCP was installed.
- 2. Open the PCTCP.INI document with a text editor.
- 3. Make the following changes in the [pctcp kernel] section:
- tcp-connections=10
- udp-connections=10
- window=4096
- 4. Restart your computer. Look@Me should now work with PCTCP.
-
- Unsupported stacks do not work with Look@Me due to compatibility
- problems with their WinSock libraries:
-
- * Sunsoft PC-NFS 5.1 -- Cannot be observed.
- * NCD Marathon -- Screen-sharing as a host does not work.
- * Microsoft LanMan for DOS 2.2 TCP/IP -- A local computer cannot
- copy files to the remote computer using the Exchange service. All
- other services function properly.
-
- ------------------------------------------------------------------------
- Loss of IP address
- -------------------
- If you use the Windows 95 Dial-Up Networking client to connect to a PPP
- server, you won't be able to determine your IP address by viewing the,
- "Your Internet Address Is:" message in Look@Me. This means that no one
- can connect to your computer across the dial-up link.
-
- To learn your IP address in this situation:
-
- * In Window 3.X, Refer to your IP Stack Vendor's Users guide.
-
- * In Windows 95:
- 1. Open the Network Control Panel
- 2. Select TCP/IP-> Dial-up Adapter and click Properties.
- 3. Select the IP Address Tab.
-
-
- ============================================================
- Look@Me and firewalls
- ----------------------
- You won't be able to Observe a user who is behind a firewall. For more
- information, see the "TCP/IP - Look@Me connections appear to be blocked"
- section under Troubleshooting (later in this document).
-
-
- ============================================================
- Cross-platform information
- ===========================================================
-
- ------------------------------------------------------------------------
- Macintosh software requirements
- --------------------------------
- Make sure the Macintosh user is running Timbuktu Pro for Macintosh 1.0.5
- or later and MacTCP 2.0.6 or later.
-
- ------------------------------------------------------------------------
- Color mismatch
- ---------------
- When a PC user is observing a Macintosh computer, the colors in the
- Look@Me window of the PC may not exactly match the colors on the
- Macintosh.
-
- If the Macintosh Monitors control panel is set to millions of colors and
- the PC that is observing it is using standard VGA, performance may be
- unacceptable. Ask the remote Macintosh user to switch to 256 or even 16
- colors.
-
- ------------------------------------------------------------------------
- RAM Doubler
- ------------
- A Timbuktu Pro for Macintosh user cannot connect to a Timbuktu Pro for
- Windows computer that is using RAM Doubler.
-
- ------------------------------------------------------------------------
- Bypassing QuickDraw - FrameMaker
- ---------------------------------
- When the Macintosh is running FrameMaker 4.0, the text in the FrameMaker
- menus may not be visible to the PC observer. Make sure the Macintosh
- user has switched on Support Bypassing QuickDraw in the Preferences
- dialog box.
-
- ------------------------------------------------------------------------
- Invisible buttons
- ------------------
- Buttons in a Macintosh application may sometimes not be visible to the
- PC observer.
-
-
- ============================================================
- NetWare information
- ===========================================================
-
- Look@Me does not support the Novell IPX protocol.
-
- Upgrade to Timbuktu Pro for Networks (Windows edition) for full
- IPX functionality.
-
-
- ===========================================================
- Troubleshooting
- ===========================================================
-
- ------------------------------------------------------------------------
- Installing Look@Me - Cannot find MFCOLEUI.DLL
- ----------------------------------------------
- Did you see the following message during the Look@Me installation?
-
- To finish installation, you need to copy the file:
- MFCOLEUI.DLX
- into your Windows system directory and rename it MFCOLEUI.DLL.
-
- If so, look in the directory where you installed Look@Me (by default,
- C:\farallon) and copy the file MFCOLEUI.DLX into your Windows
- system directory. Don't forget to rename it MFCOLEUI.DLL
-
- ------------------------------------------------------------------------
- Starting Look@Me - Cannot find MFCOLEUI.DLL
- --------------------------------------------
- Did you see the following message during the Look@Me installation?
-
- Cannot find MFCOLEUI.DLL. Windows needs this file to run
- C:\FARALLON\LOOK@ME.EXE.
-
- If so, refer to the preceding note regarding installation of
- MFCOLEUI.DLL.
-
- ------------------------------------------------------------------------
- Starting Look@Me - Lotus Notes
- --------------------------------
- Look@Me should be started before Lotus Notes.
-
- ------------------------------------------------------------------------
- TCP/IP - Attempting to observe your own computer
- -------------------------------------------------
- Please do not attempt to observe your own computer; it may crash
- your system.
-
- ------------------------------------------------------------------------
- TCP/IP - No TCP/IP Address or Functionality
- --------------------------------------------
- If the Internet Address does not appear in your Look@Me window,
- make sure that your TCP/IP software is compatible with Look@Me, as
- explained in the "TCP/IP stack options" section above.
-
- If you are using a Certified or Verified stack, make sure that your IP
- network software is working properly outside of Look@Me. Try other
- WinSock IP applications, such as Ping, Netscape, Telnet, or FTP. If
- these aren't working either, the problem is more likely to be with your
- IP stack rather than with Look@Me.
-
- If you are using a TCP/IP stack that has not been either Certified or
- Verified, you must be able to answer Yes to the following questions:
-
- * Does your TCP/IP stack have a WINSOCK.DLL? The documentation
- should state this clearly.
-
- * Do you have the most recent update of the TCP/IP stack? To find
- out, contact the vendor of the stack.
-
- * Is there only one WINSOCK.DLL in your path? If you find any
- others, rename them or remove them from your path.
-
- * Does the WINSOCK.DLL in your path--normally in the Windows or WFW
- directory--match the one provided by your stack? To find out, see
- if the dates and sizes of the two WINSOCK.DLL's are identical. If
- you answered "yes" to all of these questions and Look@Me
- still does not work, visit the Farallon Web server
- (www.farallon.com) to find the latest list of supported IP stacks.
-
- ------------------------------------------------------------------------
- TCP/IP - Some types of Look@Me TCP/IP connections appear to be blocked
- -----------------------------------------------------------------------
- Situation: For security reasons, network managers on TCP/IP networks
- usually want to restrict external access to their networks. Most of the
- time they will open the ports required by common services (Telnet, FTP)
- and set their IP routers (or gateways) to block the other ports.
- An IP router that is set to block (or filter out) TCP/IP ports is
- called a "firewall." By blocking the ports that Look@Me and Timbuktu Pro
- require, a firewall can prevent Look@Me or Timbuktu Pro from making a
- connection. In order for Look@Me or Timbuktu Pro to access a computer
- on a firewalled network, the network manager must open the TCP ports
- that Look@Me requires.
-
- Background: Look@Me and Timbuktu Pro both use UDP port 407 to
- establish contact with a remote computer. Once a Look@Me or Timbuktu
- Pro-equipped computer receives a request for a connection, information
- about the remote computer (including the port number to use for
- exchanging data) is returned through contact port 407.
-
- The Internet Society has granted "well-known" status to Look@Me's
- and Timbuktu Pro's use of UDP port 407. This means that it is very
- unlikely that other network services will be using port 407. Because
- port 407 is a "well-known" port assignment, we did not provide the
- ability to change it. That means that if UDP port 407 is blocked,
- Look@Me and Timbuktu Pro will not work.
-
- Once the connection has been established through UDP port 407, the
- computer that received the request for a connection switches to
- TCP port 1418 to transfer data. A computer that initiates a
- connection uses dynamically-assigned port numbers (one for screen
- data and one for mouse-movement data) that are negotiated by the
- two computers involved. This normally results in the selection of
- TCP port numbers that fall between 1024 and 32767. Most Internet
- providers follow the convention of allowing ports greater than 1023
- to be assigned to TCP/IP applications dynamically. If these ports
- are firewalled, Look@Me will not be able to complete a TCP/IP
- connection.
-
- Here is a "graphic" summary of how Look@Me uses TCP/IP ports:
-
- Guest Port # Port type Port # Host
- Contact Dynamic <---------UDP---------> 407 Contact
- Observe Dynamic <---------TCP---------> 1418 Observe
- Mouse Dynamic <---------UDP---------- Dynamic Mouse
-
- Solution: The network manager will need to reconfigure the firewall
- permissions to permit dynamic TCP port assignments. Refer to your
- firewall or router documentation for details.
-
- ------------------------------------------------------------------------
- Observing - Observe window sometimes freezes
- ---------------------------------------------
- If you are observing a remote computer and the other computer appears to
- freeze up, check the video driver on the remote computer. Ask the remote
- user to switch his or her video mode to standard VGA or to one of the
- standard Super VGA drivers that ship with Windows 3.1.1. The problem may
- also occur if you are using a non-standard video driver.
-
- ------------------------------------------------------------------------
- Observing - Some colors not visible in Observe window
- -------------------------------------------------------
- If incorrect colors appear during an observe session between two
- computers, check for differing color capabilities. For example, if the
- remote computer you are observing has 256 colors with a text highlight
- of light blue and your computer has only 16 colors, the light blue may
- be mapped to white in your Observe window. You won't be able to see
- any highlighted text. Ask the other user to switch to the same color
- depth you are using.
-
- ------------------------------------------------------------------------
- Observing - Screen savers
- ---------------------------
- If you expect to have remote users observing your computer, it's best to
- avoid using a screen saver. Since you are not controlling the other
- computer you cannot turn off the screen saver. In this case, the only
- thing that Look@Me will allow you to do is to enjoy watching a remote
- computer's screen saver.
-
- ------------------------------------------------------------------------
- Observing - Observing DOS sessions
- -----------------------------------
- While Observing another PC, you can observe a DOS session in a window.
- But if the remote user switches the DOS session to full-screen mode,
- your window will display "funny" things and you won't be able to see what
- is happening at the remote computer's DOS prompt.
-
- Hint: you can usually assume you have connected to a computer in a
- full-screen DOS session if the your picture of the remote desktop
- contains partially-drawn windows or text segments.
-
-
- ===========================================================
- Memory configuration issues
- ===========================================================
-
- The following symptoms may indicate that you are experiencing a low DOS
- memory problem:
-
- * Look@Me won't run.
-
- * You can't run other Windows applications when Look@Me is running.
-
- * After a observe connection is interrupted, nobody can connect to
- your PC or to the one you were connected to.
-
- * You can't maximize the Observe window.
-
- * Buttons are not completely drawn.
-
- * Error messages are only partially displayed.
-
- Because Windows sits on top of DOS, Windows applications and the Windows
- operating system need a certain amount of low memory (memory below 1 MB).
- This problem usually appears on portable computers that use PCMCIA
- socket service drivers; however, desktop systems can also exhibit
- the problem. Try one or more of the following suggestions to free up
- memory.
-
- * Review the list of DOS drivers and TSRs you are using and stop
- loading the less important ones.
-
- * Maximize low DOS memory by using a Memory Manager such as EMM386
- or QEMM to load DOS drivers and DOS TSRs into upper memory. If you
- are using DOS 6.x, you can also run MemMaker. Refer to your memory
- manager documentation for specific instructions.
-
- * If you are running Windows for Workgroups with a third-party video
- driver and you do not need advanced video functionality, try using
- the standard Windows VGA or Super VGA driver. Run the Windows
- setup program to switch video drivers.
-
- * If you are running TCP/IP only under Windows for Workgroups,
- consider using the Microsoft VxD-based TCP/IP stack with NDIS 3.x
- drivers. This will greatly reduce your low memory usage.
-
- * Limit the number of Windows applications you have open at one
- time.
-
- You may also experience difficulties if your computer or the computer
- you are observing is low on Windows memory. You can free Windows memory
- by closing unneeded applications. The following problems may indicate
- low Windows memory:
-
- * Your screen partially redraws and then stops for 100 seconds.
-
- * A Observe window closes if you maximize it.
-
-
- ===========================================================
- Testing Look@Me
- ===========================================================
-
- You can connect to the following IP addresses of computers running
- Timbuktu Pro at Farallon Computing, Inc.:
-
- tb2prowin.farallon.com (a PC running the Windows version)
-
- timbuktu.farallon.com (a Macintosh running the Macintosh version)
-
- You can use these IP addresses to confirm that Look@Me, is
- working correctly.
-