The way it works:
1- Download the file.
2- Create a folder with any name you want
3- Decompile all files in the new folder (do not delete nor any file, all are important for making IMO)
4- Just open the config files and modify them according to what you want, then run the
oscam-1.20_svn11678-798-x86_64-pc-cygwin by double clicking on it.
Thanks MOHAMED_OS