Did Spybot S&D find anything ?

Did disabling system restore remove the old restore files ?
I would like to suggest scanning with some other tools but there aren’t that many that support winME.

If you haven’t already got this software (freeware), download, install, update and run it, preferably in safe mode.
This is one that supports it a-Squared free run it and report its findings before taking any action as there have been occasions where the detection has been false.

Sorry I have never used winpatrol.

I would suggest googling the runtime errors and see what that brings.