Ok well this is something useful and something i just made an hour ago but does work. So if you couldn't figure out how to open combat arms in a window your problem is solved. Here are the instructions on how to use it.
All you have to do is locate your Combat Arms Folder Usually it is C:\Nexon\Combat Arms then Extract GMOption.cfg into it click yes to replace the file and your done. now you can open combat arms in a window rather than full screen.
https://www.mpgh.net/forum/164-combat...-tutorial.html read that before you post ANYTHING else or EVERYTHING you do post is going to be deleted and i hope you know you dont have to double post because you can edit your post by clicking the big "EDIT" button and if you do double post you can get banned for Spamming