I checked Google and the knowledge base at Microsoft. No mention of the file name. But google did come up with a "hijackthis" log that came had this file mentioned. Sorry, can't say what it said...it was in German. So..at this point I would say that if your system is otherwise running fine, leave it alone.

You could try this. Right click the file name. Go to properties and see if the read-only box has a check mark. If it does, clear it and try deleting it then.

and life goes on...