The Windows XP operating system includes a feature called Remote Desktop, which allows users to connect to other PCs over the Internet. Before you can use the Remote Desktop feature, it must be enabled on your computer by an administrator. Be aware that certain system firewalls may block Remote Desktop connections and prevent you from connecting to some PC computers.
Enable Remote Desktop
Log on to your PC with an account that has administrative privileges.
Open the Start menu, right-click the "My Computer" icon and select "Properties."
Go to the "Remote" tab at the top of the Properties window.
Check the box next to "Allow users to connect remotely to this computer."
Press the "OK" button to save the settings and enable Remote Desktop.
Using Remote Desktop
Open the Start menu and expand the "All Programs" list.
Open the "Accessories" and "Communications" subfolders and then click "Remote Desktop Connection."
Enter the hostname or IP address of the PC you want to access in the "Computer" field.
Click the "Connect" button to begin communicating with the remote PC.
Log in to the remote computer with a valid username and password. The desktop of the remote computer will now appear in a virtual environment.
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