[Ironfist ver 1.3.0] What is the best compatibility setting for ironfist.exe?

I have problems with ironfist.exe when compatibility is set to Windows 95, this in order to have fewer crashes with the program.

In the file properties, compatibility tab, if the compatibility is set to Windows 95, the program freeze completely when ending a turn (except with the "Behemoth Path" scenario), the only thing to do is to kill the program in the task manager.

OS: Windows 7 Home Premium 64 bits.