Problems using Version Manager when Trimble Positions Desktop is installed

Some enterprise geodatabase users have reported a problem trying to launch Version Manager from ArcMap’s Versioning toolbar with the Trimble Positions Desktop add-in installed. We can confirm this is a problem in the current (and last several) releases.  During installation of the Trimble Positions Desktop add-in, the installer makes a few changes to the ArcMap.exe.config file.  One of these changes is to add the “useLegacyV2RuntimeActivationPolicy” property to the <startup> tag:

<startup useLegacyV2RuntimeActivationPolicy="true">

This was originally necessary to support one of the components used to unpack downloaded base station files during post processing.  However, subsequent investigation has indicated that the component has been upgraded and no longer requires this particular change in the configuration file (.NET environment).  Although removing the text entirely would seem to be an option, there is a check prior to post processing that looks for the “useLegacyV2RuntimeActivationPolicy” text in the .config file to make sure that the Trimble Positions changes were made.  But, what can be done is setting the value to “false“:

<startup useLegacyV2RuntimeActivationPolicy="false">

We believe this should fix the issue with Version Manager not launching and all existing Trimble Positions Desktop add-in functionality should be unaffected.  After making the change, we encourage you to test post processing (specify the Delete previous downloads option) with the base stations you typically use. This will be permanently fixed in a future release.

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