How to change the size of the gaming window?

[MonkeyPunch]

If you want a more custom solution depending on your screen's resolution.. from the iROwiki (this is what I did):

1. Open up "regedit" (type this into your windows search)
2. If you are running 32-bit follow this path:
HKEY_LOCAL_MACHINE\SOFTWARE\Gravity Soft\Ragnarok

If you are running 64-bit follow this path:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Gravity Soft\Ragnarok

3. Change the HEIGHT and WIDTH values