TS Web on XP Error: ActiveX Not Installed Or Enabled

I’ve just set up TS Web (Windows Server 2008 Terminal Services web interface) on 2 XP machines.  Both were running IE7, the latest RDP client and XP Service Pack 3.  When I fired up the URL I got the following: “ActiveX not installed or enabled”.  The ActiveX plug-in for RDP wouldn’t work.

I did a quick Bing – OK I Googled.  Binging still sounds wrong – and found a fix.  I needed to delete a couple of registry keys from HKCU:

  • HKCUSoftwareMicrosoftWindowsCurrentVersionExtSettings{7390f3d8-0439-4c05-91e3-cf5cb290c3d0}
  • HKCUSoftwareMicrosoftWindowsCurrentVersionExtSettings{4eb89ff4-7f78-4a0f-8b8d-2bf02e94e4b2}

I refreshed the page and all was well.  I was now asked (using the yellow bar) if I wanted to enable the ActiveX plug-in, which I did.

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