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README.TXT
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2002-11-20
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Adaptec Inc., Copyright (c) 2002
ASPI Overview
=======================================================
I ) Operating Systems and ASPI Files Installed
II ) Changes between v 4.60 and v 4.71
III) GetASPI32Buffer Addendum
IV ) How to increase the non-paged pool size
V ) Windows XP Support
VI ) Installation of ASPI
VII) Status Codes for ASPIINST.EXE
I. Operating System ASPI Files Installed
========================================================
Microsoft Windows NT 4.0 wnaspi32.dll, aspi32.sys
winaspi.dll, wowpost.exe
Microsoft Windows 2000 wnaspi32.dll, aspi32.sys
winaspi.dll, wowpost.exe
Microsoft Windows 98 wnaspi32.dll, apix.vxd
Microsoft Windows Me wnaspi32.dll, apix.vxd
Microsoft Windows XP wnaspi32.dll, aspi32.sys
II. Changes Between v 4.60 and v 4.71
=======================================================
1) It is important the following pairs of files have matching version numbers:
(you may not have all of these files; which files you have in your PC depends
on which Windows platform is in your PC)
a) wnaspi32.dll and aspi32.sys
b) wnaspi32.dll and apix.vxd
c) winaspi.dll and wowpost.exe
It is not important, for example, for wnaspi32.dll to have matching version
number with winaspi.dll. Disregard any such error message from aspichk.exe.
Also disregard any error message from aspichk.exe regarding files not present.
2) Windows 2000 and Windows NT4.0 Only:
Command tagged queueing is enabled by default in v4.71; however, this is
functional only if your Host Bus Adapter (HBA) supports tagged queueing.
Check with your HBA vendor for HBA capabilities.
3) Windows 2000 Only:
aspi32.sys (aspi2k.sy_ before install) remains a non-Plug-and-Play driver in Windows 2000.
Once loaded, aspi32.sys will not unload. To get aspi32.sys unloaded, delete the file
\winnt\system32\drivers\aspi32.sys and reboot PC.
4) Previous versions of aspi32.sys for Windows 2000 and XP may not return the proper
Maximum Number of Targets (HA_MaxTargets) in reponse to Host Adapter Inquiry
(HA_INQUIRY). This has been corrected.
III. GetASPI32Buffer Addendum
=========================================================================
FYI
If you have experienced a failure to allocate a buffer (GetASPI32Buffer),
you may need to do one or both of the following:
1) increase the non-paged pool size on your PC (allocate more RAM to
non-paged pool),
2) physically add more RAM to your PC.
3) decrease the buffer size requested.
The first thing to do is to increase the non-paged pool size.
IV) How to increase the non-paged pool size ?
=============================================
1) Run regedt32.exe ( click Start->Run and type regedt32 ),
2) Edit HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SessionManager\MemoryManagement\NonPagedPoolSize
This parameter is a REG_DWORD (32 bits).
NOTE : If it is set to 0x00, the default minimum portion of RAM is allocated to
non-paged pool.
3) Set this parameter to 0xffffffff (the maximum portion of RAM is allocated to
non-paged pool.) Reboot the PC and try the application again.
NOTE : If GetASPI32Buffer still fails; you may not have enough
physical RAM in the PC, and you may need to physically
install additional RAM.
If GetASPI32Buffer now works, then gradually decrease the non-paged pool size
( by specifying the amount of RAM allocated to non-paged pool ) to optimize.
Tips
-------------------------------------------------------------
Set the NonPagedPoolSize to 0x00100000 for 1 MegaBytes;
0x00200000 for 2 MegaBytes; etc.
See the Microsoft Developer Network (MSDN) article Q126402 (www.microsoft.com)
for more information regarding setting the non-paged pool size.
V. Windows XP Support
===========================================================
Contents:
-----------------------------------------------------------
install.bat installation batch file
reg_xp.exe registry modification utility
aspixp.sys 32-bit ASPI driver ( v 4.71.2 )
wnaspixp.dll 32-bit ASPI DLL ( v 4.71.2 )
aspi64.sys 64-bit ASPI driver ( v 4.70.8 )
wnaspi64.dll 64-bit ASPI DLL ( v 4.70.8 )
VI. Installation of ASPI
============================================================
1. Run INSTALL.BAT with the target operating system
command line option specified:
X86 ( for Windows 98/ME/NT/2000 )
XP32 ( for Windows XP 32-bit )
XP64 ( for Windows XP 64-bit )
e.g. "INSTALL.BAT X86"
2. INSTALL.BAT will prompt you to specify which operating
system to install for if you did not specify one in Step 1).
a) If you are installing for X86 systems for either
Windows 98/ME/NT/2000 then ASPIINST.EXE will be invoked
and the rest of the installation process will be carried
out.
b) If you are installing for X86 or Itanium systems the
batch file will invoke REG_XP.EXE to make the necessary
registry entries and then copy the operating system
specific files to the appropriate location. The operating
system path is determined by the environment variable
%windir%.
For Win XP 32-bit:
ASPIXP.SYS will be copied to %windir%\system32\drivers\ASPI32.SYS
WNASPIXP.DLL will be copied to %windir%\system32\WNASPI32.DLL
For Win XP 64-bit:
ASPI64.SYS will be copied to %windir%\system32\drivers\ASPI32.SYS
WNASPI64.DLL will be copied to %windir%\system32\WNASPI32.DLL
3. Reboot the system to enable the ASPI driver.
VII) Status Codes for ASPIINST.EXE
===========================================================
The use of the C programming convention, EXIT, has been
removed completely from the source. EXIT has some
restrictions which RETURN does not.
EXIT allows for only the low order byte of the status code
to be accessible to the calling process. The status value
is available to the operating system batch command ERRORLEVEL
but is represented by one of two constants EXIT_SUCCESS (0)
or EXIT_FAILURE (1).