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Explorer keeps crashing. Only occurs after first log off

Hi,

One of our traders has a W2k Pro machine with SP4.  Something (unfortunately, the desktop support guys are extremely vague about what) has been installed on his machine and now explrer.exe keeps crashing with messages like the following (the memory addresses change everytime).

Windows - Application Error The instruction at "0x00403759" referenced memory at "0x202c7971". The memory could not be read. Click on OK to terminate the program.

After clicking OK, the entire explorer shell restarts which causes the message to pop up again.

The strange thing is, if the machine is rebooted, anyone can log on once and the PC is fine.  However, as soon as a logoff has taken place, the next person to log in receives these errors (even if it's the same account).  This occurs to all accounts including administrator.  We've deleted the user profiles to ensure it isn't profile related.  We've also re-installed SP4.

The following error appeared once in the event viewer.  Event ID 1000, Event Source: UserEnv 'Windows cannot unload your registry class file".  There is a KB article (KB827825) that references this error, but i'm not sure it applies to this problem.

We've currently told the trader not to log off his machine, and it is working OK, but any suggestions for fixes would be greatly appreciated.

Cheers

Mick
0
lambch0p
Asked:
lambch0p
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1 Solution
 
BigC666Commented:
howdy,

give this a try start->run rundll32 setupwbv,IE6Maintenance

let us know
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lambch0pAuthor Commented:
Thanks BigC.  Tried that, but no joy.

The exact error that appears in Event Viewer is as follows

Windows cannot unload your registry file.  If you have a roaming profile, your settings are not replicated. Contact your administrator.  

DETAIL - Access is denied. , Build number ((2195)).

This only appears at the time of the first logoff (regardless of which account actually logged off).  From that point on, Explorer keeps crashing and the message does not appear with subsequent logoffs.  I've scanned for viruses but the machine appears to be clean.

Mick
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lambch0pAuthor Commented:
Any more suggestions on this would be helpful.  Have increased the points for whoever can help me sort this.

M
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lambch0pAuthor Commented:
Update.

I got hold of the hotfix referred to in KB article 827825 and it sorted it.

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moduloCommented:
Closed, 350 points refunded.

modulo
Community Support Moderator
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