Having someone stealthy login to your computer creeps some people out. This is why they give the notice.
I am not sure where you are getting the notification. Here are some things to try.
* Hit Start - Run and enter services.msc
* Find NetMeeting Remote Desktop Sharing in the list of services.
* Double click it or right click and select properties
* On the logon tab disable the option "Allow service to interact with desktop"
Other things to try are:
- Create another account for remote access. This shouldn't effect your current session.
- Enable multiple sessions for individual accounts:
- - http://remotedesktoprdp.com/Force-Single-Session-Allow-Multiple-Sessions-Per-User.aspx
- Try using a shadow session?
- - http://support.microsoft.com/kb/279656
- Switch to VNC such as tightvnc
- - http://www.tightvnc.com/