I have McAfee Security Center Version 9, build 9.0.295. In the view recent events area, I see that on 10/16/2008, "system guards have blocked any future changes" to my computer. There are no changes after that date and many before.
In the details area it says:
Rule Type: File Process: C:\WINDOWS\system32\calc.exe Process Description: Windows Calculator application file Process Publisher: Microsoft corporation
This seems very suspicious. Is my Windows Calculator compromised?