On my XP Media Center, I had this same problem with both Sibental products (today’s Video Watermark Factory, and Media Resizer Pro of 2 days ago):
Product(s) would only install and run from an administrator-privilege account. Attempts to additionally “activate” or “setup” from non-admin accounts (ordinary user; i.e., my kids’ account) did not result in working programs.
Instead I got a small window with the following error message for both products:
Error: Cant’t find instalation path!
(with spelling as shown)
For Media Resizer Pro that message appeared in a window titled “connector” and I tracked it to this file: C:\Program Files\Media Resizer PRO\connector.dll
For Video Watermark Factory that same message appeared in a window titled “Video Watermark Factory”, but I have not yet found the file that contained the message (I was assuming the file would similarly be somewhere under C:\Program Files\Video Watermark Factory)
Thanks to “Carol” and others for the comments on Media Resizer Pro regarding disabling/renaming the shell extension file “shellext.dll”. That had my non-admin kids’ accounts really messed up since every right-click on many file types caused Windows to reload (after displaying the same error message above as when trying to launch those programs).