Game resolution

[Domestos]

Hi..
I'm trying to run the game in windowed mode at a slightly lower resolution than my monitor (1920x1080) I'm running TWoS. Where is the file that controls the resolution? I tried editing ...sh5\Data\Cfg but it didn't take. The data in that file seemed not to relate to what I'm seeing in game. I used the next lowest option in the game drop down resolution menu but I'd like to edit it to slightly higher.


Thanks!