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Why Do I Get Error 80040154 When Launching TestStand After an Installation?

Primary Software: TestStand
Primary Software Version: 4.0
Primary Software Fixed Version: N/A
Secondary Software: N/A

Problem:
I just installed TestStand and when I try to launch it I get the following error:
Retrieving COM class factory for component with CLSID {B2794EF6-C0B6-11D0-939C-0020AF68E893} - failed due to the following error: 80040154.

Why do I get this error message and how do I fix it?

Solution:
This error can occur if the TestStand installation did not set an active version of TestStand.

In order to fix this problem, simply open up the TestStand Version Selector tool and set the active version.

1. Click Start»Programs»National Instruments»TestStand»TestStand Version Selector
2. You might get an error message at this point explaining that there is no current active version. Click OK.
3. Pick the version of TestStand you want to set as the active version from the Installed TestStand versions dropdown box.
4. Click Make Active.
5. You should get a confirmation dialog box informing you that the active TestStand version has been changed successfully.

Now when you launch TestStand, it should run correctly.

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Report Date: 05/27/2008
Last Updated: 05/28/2008
Document ID: 4LQF5DPE

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