I got the following information in my Windows Me update on 12-3-00. It is a WARNING to everyone running Windows Me How to print this page Note: these comments probably apply to XP as well.

Important information about a potential problem with some disk-defragmenting tools running in Windows Me. If you use Disk Defragmenter (or a third-party defragmenting tool) to defragment your hard disk, your computer continues to run correctly. However, when you restart it, you may receive an error messages and be unable to start Windows. Please see our online KB article at Microsoft Product Support Services. I have copied the articles here for your convenience. Please look at the original article on the Microsoft site and copy it for your own records. If this happens, you will not have access to the web to find the article.

First Article Q275003

Article ID: Q275003 "Exception 03h in Module..." Error Message Starting Windows Me Found at:

http://support.microsoft.com/support/kb/articles/Q275/0/03.ASP

SYMPTOMS

After you upgrade to Microsoft Windows Millennium Edition (Me) and then use the Disk Defragmenter tool (or a third-party defragmenting tool) to defragment your hard disk, your computer continues to run correctly. However, when you restart your computer, you may receive any of the following error messages:

Scandskw caused Fatal exception O3H in module user32.dll
Mprexe caused an exception 03h in module user32.dll
Statemgr caused an exception 03h in module user32.dll
Rundll32 caused an exception 03h in module user32.dll
Mstask caused an exception 03h in module user32.dll
You might also receive error messages from a long string of sources, all of which point to either Gdi32.dll or Winmm.dll.

CAUSE

The following files may have been corrupted by Cmapieng.vxd:
User32.dll
Gdi32.dll
Winmm.dll

RESOLUTION

To resolve this issue:

Insert the Windows Me Startup disk and restart your computer.
On the Startup menu, choose Start computer with CD-ROM support.
Type the following commands, pressing ENTER after each command, where windows is the name of your Windows folder:
c: cd windows\system
ren user32.dll user32.dlx
ren gdi32.dll gdi32.dlx
ren winmm.dll winmm.dlx
a:
ext.exe

When you are prompted "Please enter the path to the Windows CAB files," type cd-rom:\win9x, where CD-ROM is the drive letter for your CD-ROM drive, and then press ENTER. Note that this letter may be different when you are using a Startup disk.

When you are prompted "Please enter the name(s) of the files you want to extract," type user32.dll gdi32.dll winmm.dll, and then press ENTER.

When you are prompted "Please enter the path to extract to," type drive:\windows\system, where drive:\windows is the drive and folder in which Windows is installed, and then press ENTER.

Review the information that is displayed. If it is correct, press Y, and then press ENTER.

Type the following commands, where windows is the name of your Windows folder, pressing ENTER after each command:

c:
CD \windows
ren cmapieng.vxd cmapieng.vxx

NOTE: If Cmapieng.vxd does not exist in the C:\Windows directory, check for the existence of this file in the C:\Program Files\Cybermedia folder after you restart Windows, and then rename it. Or, use the System Configuration Utility tool to prevent the Cmapieng.vxd file from loading. For additional information about how to use the System Configuration Utility tool to disable startup items, check the article number below to view the article in the Microsoft Knowledge Base:

See the Second Article Q275003 Below

Q267288 How to Perform a Clean Boot in Windows Millennium Edition located at http://support.microsoft.com/support/kb/articles/Q267/2/88.ASP

Restart your computer.

Defragment the hard disk again.

MORE INFORMATION

The following Network Associates products include the Cmapieng.vxd file that causes the problem:

Cybermedia's Oil Change
Uninstaller version 5 and earlier
Guard Dog version 2.5 and earlier
First Aid 97, 98 and 2000
McAfee Utilities 3.0
McAfee Office version 2
McAfee Office 2000 (version 3.0)

The following current versions of these products (as of October, 2000), do not include the Cmapieng.vxd file:

Uninstaller version 6 and later
Guard Dog version 3.0 and later
McAfee Utilities version 3.1 and later
McAfee Office version 3.1 and later

The third-party products discussed in this article are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

SUMMARY

This article describes how to disable common startup programs, settings, and drivers to troubleshoot problems in Windows Millennium Edition (Me). This procedure is known as "clean booting."

Use this procedure only to troubleshoot error messages or behaviors when you have been unable to determine the cause of the problem. Following these steps results in a temporary loss of some functionality. Restoring the settings restores the functionality, but may result in the return of the original error message or behavior.

MORE INFORMATION

Search the Microsoft Knowledge Base for information about your specific issue before following the steps in this article. This information is not intended to troubleshoot specific issues. If you are receiving a specific error message or behavior, search the Microsoft Knowledge Base using the the text of the error message and a description of the problem or behavior. The Microsoft Knowledge Base is available at the following Microsoft Web site:

http://support.microsoft.com

How to Perform a Clean Boot in Windows Me
1. Click Start, click Run, type msconfig in the Open box, and then click OK.
2. On the General tab, click Selective startup.
3. Click to clear all of the check boxes under Selective startup.
4. On the Startup tab, click to select the *StateMgr check box.
5. Click OK. Click Yes when you are prompted to restart your computer. When the computer restarts, none of the startup selections will run.
6. To isolate the problem, if the original issue does not reoccur after the clean boot, click to select one item at a time under Selective startup, and then restart the computer to see if the additional entry reproduces the original problem.

How to Return from a Clean Boot State
1. Click Start, click Run, type msconfig in the Open box, and then click OK.
2. On the General tab, click Normal startup.
3. Click OK. Click Yes when you are prompted to restart your computer.

Categories That Are Disabled in a Clean Boot
System.ini entries
Win.ini entries
Static virtual device drivers (VxDs)
Startup items
Environment variables for MS-DOS emulation

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