BiG World Install, Trimpack patch.exe doing nothing

[SOLVED]

This is basically just a repost of something i asked on the GoG forums:

So I got over a lot of the hurdles to run the BiG World Setup with the GoG version, however in the install script I get to the point where it runs the trimpack, saying "processing fixes for BGT", and new window comes up, windows also asks me to allow it, I do. New window called "Big World Trimpack\_utils\patch.exe just sits there, blank, forever, I can even type in it and so on, it's doing jack.

So my question to you is:

What do!?

Any help is appreciated!