Hi,
No, MMW needs to be started as admin. Or in case of update of Admin installed Script MMW should pop UAC prompt.

I want to release a new update of Discogs Tagger, and with this release i need to delete an entry in scripts.ini
But if a user has install the Discogs Tagger for all users, i have a problem.

If the Addon was installed with administrative rights the entry was written in the scripts.ini located in the Program-Folder of MM.
This entry can only be deleted with administrative rights.

Is it possible to force MM to get administrative rights for installation of an Addon?