>>>This is not Instant Messenger we are talking about. This is a Message Service, which is one of the service of Win2k. But other than that I really don't know what is the function of Message Service.
>>>
>>I see, thanks for the clarification. So, I stopped and put in manual mode Message Service. How to disable IM as well?
>
>I don't know since I don't have IM. But I used to have yahoo IM and it was pretty easy and obvious to disable it (sorry I don't remember exactly how).

It can be easily turned off, but seems to restore itself each time Windows is starting... Anyway, not a big deal...