I cant find a reference to that .DLL file that it is trying to load. It could be Virus Activity.
By default when WinXP encounters a system failure, it reboots without warning. The setting that controls this can be changed by entering Safe Mode:
Control Panel/System/Advanced/Settings (Startup & Recovery)/System Failure/Uncheck-Automatically Restart. When you get the Blue Screen take note of Stop: 0X000000 and post the information it could give us a clue as to where to start looking.
There are also debugging tools available. If you look to the right of the screen when you click on this link you will find instructions.
http://www.microsoft.com/whdc/devtools/debugging/installx86.mspx
Symbols
http://www.microsoft.com/whdc/devtools/debugging/symbolpkg.mspx
Virus Removal
Restart the PC in Safe Mode and turn off System Restore insert the USB Stick and run Sophos.bat when it is completed run stng380.exe. When the PC reboots start in Safe Mode again and run Spybot.
Download Spybot - Search & Destroy 1.5.2 and install it. Update it. http://www.safer-networking.org/en/download/index.html
Download Stinger http://vil.nai.com/vil/stinger/stinger.htm
Download Sophos and the latest IDE Files. Install it and extract the IDE files to the C:\SAV32CLI folder.
http://www.sophos.com/support/knowledgebase/article/13251.html
Copy and paste the below two lines into Notepad and save the file to the USB Stick as sophos.bat, it will scan and remove.
===============================
CD SAV32CLI
SAV32CLI -REMOVE -P=C:\REMOVLOG.TXT
===============================
Also download and install CCleaner to tidy up your Registry. Let it run through until there are no errors left.
http://www.ccleaner.com/download
The Sophos SAV32CLI folder can be safely deleted after it is copied to USB.
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