Opening any application, or program, I get a Program error Explorer.exe has generated errors and will be closed by Windows?

A client of mine is running Windows 2000 Pro.  Whenever she tries to open any application, or Program she gets the following error message:

Explorer.exe has generated errors and will be closed by Windows.  You will need to restart the program.  

An error log is being created.

She can't do anything, this error message pops up everytime.  Internet Explorer does not work either.  She gets the Microsoft Internet Explorer error message, then prompts for a restart.   Hope it's not beyond repair.  Thanks in advance for the support.

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Scan your computer for viruses and spyware and, if it is clean, it may be a memory module problem (run memtest to test it or just replace it with another one).
JFowlerjrAuthor Commented:
Thanks for the response, but I figured it out soon after I posted the question.  

The Computer is on a Network with a Domain.  There was a power outage on Monday, and the clients Computer was running.  The user profile was damaged, and needed to be removed.  I rejoined the domain, and added the local user acount to the 2000 Pro Computer and this fixed it right away.  Thanks again for the quick response.

Closed, 250 points refunded.
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