12/28/08

Remote Desktop Web Connection Error

Error “Remote Desktop Web Connection ActiveX Control Could Not Be Installed” After
This is a registry hack, so make sure you backup your registry before attempting to do this fix.

Installing Windows XP SP3
August 28th, 2008 • Filed Under • by Ramesh Srinivasan
Filed Under: Internet Explorer • Windows XP
Tags: Error Messages • Internet Explorer • registry • XP

When you start the Remote Desktop Web Connection window after installing Windows XP Service Pack 3, the following error may occur, and the Connect button remains grayed out:
Remote Desktop Web Connection ActiveX control could not be installed. A connection cannot be made without a working installed version of the control. Please contact the server administrator.

Microsoft RDP ActiveX Control is disabled when you install Windows XP Service Pack 3 or Windows Small Business Server 2003 SP1. Follow one of the following methods to enable the ActiveX control.
Method 1

Use the Manage Add-ons dialog in Internet Explorer to enable the Terminal Services ActiveX Control. For more information, refer to article You cannot connect to a remote computer when you use Terminal Services Web Access or Remote Web Workspace on a Windows XP SP3-based computer

If the ActiveX control is not listed in Manage Add-ons dialog, follow Method 2 below.
Method 2

1. Click Start, Run. Type Regedit.exe and press ENTER

2. Navigate to the following branch:
HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Ext \ Settings

3. Double-click Settings to expand the branch

4. Right-click {7584c670-2274-4efb-b00b-d6aaba6d3850} and choose Delete

5. Click Yes when asked for confirmation.

Close all instances of Internet Explorer and re-run Remote Desktop Web Connection.

Registry Fix

To automate the above, download tsweb-enable.zip and save to Desktop. Extract the contents and run the file tsweb-enable.reg file. To reverse the changes, run tsweb-disable.reg.

via winhelponline