Installing plugins without registry modification

Dear all,
After reading the rhi docs again, and any post I could find on the subject, I am still struggling to figure out how to silently install plugins in Rh5 without modifying the registry (limited user access).
Copying the plugin files in &appdata%\McNeel\Rhinoceros\5.0\Plug-ins triggers the plugin to be detected properly (well, at least it is listed in the plugins menu), but it is blocked by Rhino during the loading.

From what I understand, that’s because the filename is not listed in the registry. Is there any other way to validate the loading of a plugin?

PS: I cannot use rhi, as I don’t want anything in CommonFiles, and my install process has many other steps.
PS2: Code only, no drag and drop.

You only need to modify the registry in HKEY/CURRENT_USER, no admin rights required. It’s not possible without registry modification.

Thanks! Testing now