Use APKPure App
Get 7imulator : Simulator for Win7 old version APK for Android
Simulatore per Win7
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 work on other versions.
Updates : http://www.mobistartapp.com/getWin7Simulator.php
Facebook : https://www.facebook.com/Windows7Simulator