UPDATE: this "bug" is starting to make some disruptions as search.exe will not load anymore and the error dialog is shown every time the search tool is started and it never starts. Other users complained their PDM task panel did not responded anymore and it was impossible to checkin checkout or state change files.


This happened on some of our machines (WIN10 & 11 indifferently), while most machines installed a new version of our VAR addin without a problem, on some after logging into PDM the dialog “Object reference not set to an instance of an object." appears and the addin is not available inside the vault from the right click menu.

I have checked the local user APPDATA folder for the machines failing and compared every file with my PC that works fine: everything  was downloaded correcly from the PDM server.

\AppData\Local\SOLIDWORKS\SOLIDWORKS PDM\Plugins\KTSPDM\{2EC867F1-1467-32C9-9AA7-6BDB8D8CFC0C}\

EPDM.CAF

EPDM.dll

EPDM.Interop.epdm.dll

SolidWorks.Interop.sldworks.dll

SolidWorks.Interop.swconst.dll

SolidWorks.Interop.swdocumentmgr.dll

My VAR, the maker of such plugin has no report about this issue.

I tried to reboot the client, clean the APPDATA PDM plugins forcing a plugin download from the server, tried another PDM user.

Nothing worked. .NET 4.8 is already installed. I tried Also
 

regsvr32 "C:\Program Files\SOLIDWORKS PDM\edminterface.dll" /s