Launch external .vbs, .exe or .appx

I have been searching for days and have found lots of ways to do this in standalone players but not in a Windows Store build. I have played around with the association sample files and can get it to open .txt and other files like that but it will not open .vbs, .exe or other applications that are installed. Does anyone know how to do this?

 

so in windows store build the Process.start doesn't work?

Code (CSharp):

1. Process myProcess = new Process();
2. myProcess.StartInfo.FileName = fullPath;
3. myProcess.Start();

 

Because of the sandboxing the Process.Start does not work. I have seen some workarounds but they involve some heavy use of visual studio and I am not well versed in that.

 

So I found a script that actually sends a 3D model from Unity to the Windows 10 3D Builder app. It actually works really well and is making use of the new TargetApplicationPackageFamilyName. But I am having trouble figuring out where to edit the file to change the app it is opening. I tried changing line 383 to point to a different packagefamilyname but there is something else that is triggering 3D builder because it is still coming up and the other app is not.

https://github.com/Microsoft/Window.../3DPrintingFromUnity/Assets/Script/Print3D.cs

Any ideas how I might be able to modify this script to open another appx that is installed on the machine?