Microsoft RDP ActiveX Control

Symptom:

• you are accessing a 2008 terminal server remote "web application" page, or the "Remote Web Operators" page in SBS2003 and receive the message to activate the MS RDP ActiveX control.
• You Click on Tools -> Manage Add-Ons -> Enable or Disable Add-Ons in IE to enable the Terminal Services ActiveX control, but you are unable to see/enable the Terminal Services ActiveX control
• you have IE7 on XPSP3o 2003 Server

Cause:
bug in security model which comes with xp sp3 or web security of 2003 Server.
Terminal Services ActiveX control is disabled by default in XPSP3 as a security measure. You need to explicitly enable the Terminal Services ActiveX control in IE in order to use the ActiveX control.

Solution:
try deleting the following registry keys:

HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{7390f3d8-0439-4c05-91e3-cf5cb290c3d0} HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{4eb89ff4-7f78-4a0f-8b8d-2bf02e94e4b2)

ActiveX control should now be enabled.