Offer Remote Assistance
You can use Windows Remote Assistance to connect to a client computer that is running the Windows XP or the Windows Vista operating system. With Remote Assistance, you can share control of a user’s desktop.
You must use an account that is in the Domain Admins group to perform this procedure.
To offer assistance to a remote computer
Click Start, click All Programs, click Windows Essential Business Server, and then click Windows Essential Business Server Administration Console.
On the Computers and Devices tab, click the computer to which you want to offer remote assistance, and then click Connect using Remote Assistance.