That's application is just a simulator not an emulator.made just for fun..So you can not run exe files.
The application tested on Android 2.3.6,Android 4.4,Android 5,and it should be work on other versions.
Facebook : https://www.facebook.com/Windows7Simulator-1503013336628626
1-Fix bugs.
2-Reduce APK size.
9Apps 4.9
