Trouble with installing custom extension on a custom isolated shell application

Hello, I made a simple isolated shell application according to this https://msdn.microsoft.com/en-us/library/bb685514.aspx tutorial.

I also made a custom project template https://msdn.microsoft.com/en-us/library/xkh1wxd8.aspx and I made an extension from it https://msdn.microsoft.com/en-us/library/dd885241.aspx

I also installed my project template on a Visual Studio 2012. It is working perfectly.

Now, I faced a problem: I don't know how to install my project template on my isolated shell application. It have not have any project templates yet. When I go to the Release folder of my project template project and try to reinstall it, the installer says that the extension is already installer on all products.