After Windows XP SP3 is installed, users have been unable to access RWW from their PCs. This is caused by the SP3 installation which disables the Terminal Services Client Control ActiveX applet.
To fix the issue, start Internet Explorer. Version 7 is assumed.
Go to Tools, then Internet Options.
Click on the Programs tab.
Click on the Manage AddOns button.
In the list, look for Microsoft Terminal Services Client Control. It will be disabled.
Select the control, then click on Enable.
Close, and restart Internet Explorer.
If this doesn’t work, have a look at the following site for more information – http://www.sbslinks.com/fixmyrww.htm