> > As previously stated, now it does copy and run the game (since I can see in the Task Manager) ; but instead of showing loading screen, the system is stuck on the mod launcher which "does not respond".
> > And just in case, by "switching back", I meant Alt+Tabbing or simply clicking on the Task Bar.

> I think it stops responding because it's waiting for the game to end.

Probably... but the problem is that the whole system is frozen, so I can't even get into the game!
Only Ctrl+Alt+Del is allowed (actually Alt+Tab also, but none of the apps gets the focus).

BTW, I forgot to mention, that the very same game launcher acts the same on other computers.

As a last attempt, I'll try to remove all files from XCC Mod Creator and check if there's one file which causes the problem...

> > I will check this ASAP, but could there be any problem if you add a file inside XCC Mod Creator, but which is later removed from the file system ? (I mean: XCC Mod Creator keeping in record no longer existing files ?)

> No, that's shouldn't cause any trouble.

Indeed, didn't change anything.