I want to simply communicate to users that we are loggin into their machines to perform work and i was not sure if by enabling Messenger Service will cause security risks. I remember in XP SP3 MS disabled because sinister marketers were utilizing it to send msgs.
Currently i am asking about XP systems and SBS 2003 boxes, but also need solutions for new HW such as SBS 2k8, Win 7.
*Looking for opinions from experts in security.*