@Payl: I fixed the game crashing, my real question was in regard to 4k support. With hex editor, what file do i open? 400x300 seems quite a bit to low. Unless we modify the actual setting to proper res.
You modify paintball2.exe, at adress $9DF2C (warning: I fixed it since previous post, I accidentally pointed to string, not to correct offset).
What you will see there is this: 90010000|2C010000. 90010000 is 400, 2C010000 is 300. You can modify it to what you want, by:
1. Type number you want into Windows calculator (programmer mode)
2. Convert it to hex (hex radiobutton)
3. When you see in calculator it in following order: AABBCCDD, you save it into file like this: DDCCBBAA. See
http://en.wikipedia.org/wiki/Endianness for information about this.
4. Save file
5. Open DP and tell it to change resolution to 400x300, it will in fact make it use resolution you want.
6. If there is any problem revert to backup you surely made.