I have found an easier method. Patch independent.
Don't know if it's worth showing on the wiki page and it only works with Steam.
What do you think?
1. open your Steam Library 2. right click the game's title and select Properties 3. on the General tab you'll find Launch Options section. 4. the launch option is: "<path-to-game>\LOTF2\Binaries\Win64\LOTF2-Win64-Shipping.exe" %command%