Hi Will, thanks for reporting the new installer issue!

I wonder how your machine got set up so that you didn't have permissions?

Anyway, since MoI runs fine without any file associations set up I've tweaked the installer so that it won't put up any error dialogs if it could not write the associations to the registry, they just won't get written.

Over here I've had Rhino set up and I didn't seem to run into that problem. When Rhino is already set up as the file association for .3dm, the MoI installer is actually not trying to replace the entire .3dm entry in the registry, it is trying to add a new subkey so that it will show up on the "Open with" right-click menu. But that still gets blocked if permission is denied to the whole .3dm key.

Thanks,

- Michael