Does MSN Messenger Bypass Group Policy?

["Andy Wood" <andy () focalpoint hrcoxmail com>]

        Pls ignore this if it has been a discussion in the past.  

        If msmesgs.exe is set in the "Don't run specified windows
applications" within the Group Policy and you then try to execute the
app the msg states that the action was cancelled due to
restrictions....like it should.  However, when Outlook XP is started MSN
Messenger starts as well.  Feature or flaw?

Thanks,

Andy