Your comments

That looks like just a win32 error - those can come from corrupted files. I'll look into it.

...

Verifying and repairing the game files apparently did the trick, the game launched properly! Shame I won't be able to play until after the weekend.

Thank you for your time and patience! :)

output_log.txt

I'll attach the file from my gog galaxy folder, since I'm not launching it from or via Steam.

According to my control panel I have the following C++ redists : several 2005s, 2008s, and each of the 2010, 2012, 2013 and 2015 redists. (The latter ones I checked because I saw that exact request on the previously mentioned user's problem, but it doesn't hurt to double-check).