Relavant Knowledge and Command Service both seem like adware, so possibly not the source of your problem.
And C:\Program Files\America Online 7.0\WanMPSvc.exe is a valid part of AOL, so if you use this service you may need to restore this.
Have you scanned with BlackLight yet? Please do so and post the results.
EDIT:Upload Perflib_Perfdata_67c (or any variations you find in the same directory) to Virus Total and Jotti for analysis and post the results
http://www.virustotal.com/en/indexf.htmlhttp://virusscan.jotti.org/EDIT #2I'm finding nothing definitive on Perflib_Perfdata_xxx other than the fact that it is very common. In fact, one of two computers I just checked has a version of this. Various explanations include orphaned temp files from improper shut downs and files left from Performance Monitor or ATI Video Controllers.
Go ahead and scan the file at the links I posted above, but don't be surprised if nothing is found.
Then for sure run the BlackLight scan.