Remote desktop connection (Windows XP)

Step-by-step process to use Remote Desktop Option in Windows XP -

1. Enable Remote Desktop Connection on the machine you want to connect TO.
Right click My Computer > Click on Properties > Click on the Remote tab > Put a check mark in the option.. "Allow users to connect remotely to this machine."

2. Install the remote desktop client on the machine you want to connect FROM (Is only required if you are using a Windows 9x machine as the client... In case of Windows XP, you can anyhow access the pre-installed client from Start > All Programs > Accessories > Communications > Remote Desktop Connection.)
Insert the Windows XP Professional compact disc into your CD-ROM drive. When the Welcome page appears, click "Perform additional tasks", and then click "Set up Remote Desktop Connection". Follow the directions that appear on your screen.

3. Configure the connection -
Open Remote Desktop Connection (Click Start > All Programs > Accessories > Communications > Remote Desktop Connection.)
In Computer, type the name or the IP address of the computer you want to connect to.
NOTE - You can set additional parameters for this connection by clicking on the Options button at the bottom of the screen at this stage.
Click Connect.
The Log On to Windows dialog box appears.
In the Log On to Windows dialog box, type your user name, password, and domain (if required), and then click OK.

REF URL - http://www.microsoft.com/windowsxp/using/mobility/getstarted/enableremote.mspx
and
http://theillustratednetwork.mvps.org/RemoteDesktop/RemoteDesktopSetupandTroubleshooting.html