Applies To:
  • CitectSCADA
  • VijeoCitect
  • PowerLogic SCADA

 I have been running my webclient on Vista SP1 successfully in the past. Since upgrading to Vista SP2,I receive the following error message when I try to run the webclient:
"Web Client requires Service Pack 1 or later on Windows Vista"
 How can I fix this bug?


It looks like a possible bug in Microsoft's Vista SP2, where the registry key HKLM\Software\Microsoft\Active Setup\Installed Components\{89820200-ECBD-11CF-8B85-00AA005B4383} is not updated to the correct version.

Citect has created a short VB script that copies the correct version from HKCU to HKLM, and has tested that resolves the issue.

Customers experiencing this issue need only copy the script to affected machines and double click on it to run.

Note: As described above, the VB script only copies a registry entry from HKCU to HKLM. It is therefore safe to be run on other versions of Windows (although it is not needed).

 Service Pack 2, Vista