-programme is not an argument recognized by powershell executable.
lebrun78 you wrote
“I checked powershell.exe -ExecutionPolicy allsigned -File -ExecutionPolicy allsigned -File “P:\packages\audio video\vlc\inst_vlc.bat” on the client it works.”
-File -ExecutionPolicy are defined twice, maybe it works but it’s not what you’re asking for. In your log, the plugin seems to run another command line because I see the -programme argument, please check your command line in the plugin.