in English for fast xD
hello! I had the same problem and there is no information about this hahaha. I suffered, but the method I did was 3 things:
install prophet's crack (it brings the .DLLs for steam)
The first thing was to activate all the features of .NET Framework 3.5 in the control panel. (Control Panel\Programs\Programs and Features: Turn Windows features on or off) Windows takes care of everything...
but also look at @KNYAZEV's profile. Your publication of your universal launcher, the history of updates that I made with the application and what changed or could be wrong in my installation path.
He mentions that your tool settings are saved in C:\Users\NamePC\AppData\Local\i-Knyazev.ru\TDU2\Universal Launcher\v3
a single file appears: settings.HTML
I made a backup copy and modified the file so much that it became unusable. but before trying the backup, delete it.
install the universal launcher again...
and it opened!!!! I just configured it as usual and the "settings" file appeared again, but with the new settings.
my theory was that I installed the game (again) in another path, (C:\Games\Test Drive Unlimited 2)
Because I downloaded it from the ELAMIGOS page and I had the PROPER version configured in the launcher, since it doesn't read the destination, it gets confused, so maybe I just need to delete the settings file and configure it again!