Other names are NOLF or The Operative: No One Live Forever. Game of the year edition
This a great humerous FPS set in the 60s. It reminds a bit of Austin Powers. You play Cate Archer a spy / assassin working for UNITY. You try to catch H.A.R.M guys who are murdering secret agent. Your goal is to get the guy.
The game is pretty good and full of English humor.
This game as been patched and made workable on a variety of Windows version. Currently Windows 10 of time of writing.