Article: Q177364
Product(s): Microsoft Windows NT
Version(s): WINNT:4.0
Operating System(s):
Keyword(s): kbtool
Last Modified: 10-AUG-2001
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The information in this article applies to:
- Microsoft Windows NT Workstation version 4.0
- Microsoft Windows NT Server version 4.0
- Microsoft Windows NT Server, Enterprise Edition version 4.0
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SYMPTOMS
========
After you install Windows NT 4.0 Service Pack 3, the functionality of your
Microsoft IntelliMouse wheel may be disabled.
CAUSE
=====
This behavior occurs because the I8042prt.sys file is replaced when you install
Service Pack 3. The I8042prt.sys file is the driver that controls the keyboard
and PS/2 mouse port.
RESOLUTION
==========
To resolve this issue, rename the I8042prt.sys file in your
%SystemRoot%\System32\Drivers folder, replace it with the original version, and
then restart your computer. To replace the I8042prt.sys file, use either of the
following methods:
- If you created an uninstall folder during the installation of Service Pack 3,
copy the I8042prt.sys file from the %SystemRoot%\$NtServicePackUninstall$
folder to the %SystemRoot%\System32\Drivers folder.
- If you did not create an uninstall folder during the installation of Service
Pack 3, expand the I8042prt.sys file from your Windows NT 4.0 CD-ROM by
typing the following command at a command prompt
" expand <drive>:\i386\I8042prt.sys <windows_nt>\System32\
drivers\I8042prt.sys " (without the quotation marks)
where <drive> is the drive letter assigned to your CD-ROM drive, and
<windows_nt> is the name of the folder in which Windows NT is
installed.
MORE INFORMATION
================
For more information about the I8042prt.sys file included with Service Pack 3,
see the following article in the Microsoft Knowledge Base:
ARTICLE-ID: Q159060
TITLE : Mouse Cursor Freezes or Fails with Microsoft IntelliMouse
Additional query words: scroll rotate spin sp3
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Keywords : kbtool
Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400 kbWinNTS400search kbWinNTS400
Version : WINNT:4.0
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