Execution Prevention Sometimes Closes Windows Explorer

From: *** K (rfk2_at_NOSPAM.btinternet.com)
Date: 02/05/05 

Date: Sat, 05 Feb 2005 12:30:24 +0000

I run my PC applications in a password protected limited account
under fully updated XP Home SP2. I leave the account logged on
when I shut down into hibernation. Sometimes, when I power up
from hibernation, enter the limited account and attempt to
navigate (e.g. by double clicking on "My Computer)I encounter a
problem. Windows Explorer is immediately closed by Windows
Execution Prevention with the message "To help protect your
computer, Windows has closed this program", etc. After the error
window has been closed another copy of Windows Explorer appears
and matters proceed normally. Ostensibly this means that,
initially, malicious code was attempting to run. However I've
scanned with NAV 2004, Spybot Search and Destroy, Ad-Aware and
TDS-3 Professional, all without finding anything untoward. I
therefore suspect that I have some sort of configuration problem.
MS offer a workaround at:

http://support.microsoft.com/default.aspx?kbid=875351

All well and good but I'd prefer to resolve the underlying
problem, assuming there is one. I'd be grateful therefore if
anyone can suggest areas I can usefully investigate? Thanks
in advance.