Instead of playing with something dangerous like that, you can do something simpler and safer.
Click
here and download an older version of "Setup.exe". For some reason most people not playing on kRO (or official servers in general?) have trouble with the current version of this program, mainly on Win7 and Win8.
1- Extract that version of "Setup.exe" into your heRO folder
2- Right click your "Setup.exe", go to "Properties" and then to the "Compatibility" tab, check the option "Run this program in compatibility mode" and choose "Windows XP (SP 3), check "Run this program as administrator" as well
3- Repeat this with "heROpatcher.exe" and "heRO.exe"
4- Run your "Setup.exe" and set appropriate screen resolution and graphics card
After this, make sure you run heROpatcher and let it fully update. With these simple steps you should be ready to play.