How to run the game windowed?

[Gniarf]

1-Lol. Personally I use windowed mode when making trainers.
2-The modified Painmenu.lua allows to apply video changes without restarting the game AND it takes Cfg.Fullscreen in account.
2.2-But WFT do you need it?? Because when you (re)start the game, video settings are applied WITHOUT caring about the value you set for Cfg.Fullscreen.
3-It worked for me, and should work for anyone else.