Defender attempting unauthorised access to Norton

[Guest]

I have a string of alerts in the Norton log (Norton AV 2005) like this:

Event Details:
Time: 06/07/2006 09:07:00
Actor: C:\Program Files\Windows Defender\MsMpEng.exe (PID=720)
Target: C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
Action: Unauthorized access
Reaction: Unauthorized access stopped

(It often plays the same game with AOL's waol.exe as well, on startup. I
presume I can just ignore it and be content that Norton is going about its
job successfully protecting itself - but can anyone please explain why
Defender would be seeking 'unauthorised access' to Norton?)

 

[Guest]

Apparently Microsoft was not smart enough to seek out one of the many holes
in Norton's "security" and unwittingly targeted one of the few protected
holes. ;-)

Seriously, Denfender generally "plays well with others". That Norton
considers Defender to be a threat is admirable in a bizarre sort of way.