Overview
Here is a small guide for Windows 10/8.1 users how to properly run this game without any problems.
Do the follow steps:
1) Run config.exe in your game directory (“steam folder”steamappscommonHitman 2 Silent Assassin)
it will create hitman2.ini file.
2) Open it with a text editor, replace ‘Resolution 800×600’ or whatever your current resolution is to ‘Resolution 1920×1080’.
Then rename ‘window 0’ to ‘window 1’.
3) Download ENBSeries DX8 to DX9 Convertor v0.036 [link]
4) Extract all files from archive into the game directory or where game execution file exist.
5) Enjoy!