Hey Dave,
I do indeed create windows phone apps, and have Visual Studio 2013 & Visual Studio 2012 for Windows Phone. Do I need to uninstall these?
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You don't have to uninstall Visual Studio, I got told that it's caused by their (realtime?) debuggers.
Try launching the game using gunz.exe located on the folder. C:\Freestyle GunZ
Could be this?
https://msdn.microsoft.com/en-us/lib...2a(VS.80).aspx
Do you see anything in the event viewer regarding the error? (Windows Logs > Application?)
Visual Studio and its debugger are not running on your computer right?
See if there are any services running in the background related to this as well.