Set a project to automatically start when debugging a Visual Studio Extension

When you're developing a visual studio extension you will likely have a test project that you test with. Well, I do anyway. And I quickly got sick of having to open it over and over. Your debug properties for your VSIX project probably look something along the lines of this.

no start up project

If you simply add the path to your solution, it will be loaded automatically and save you one or two clicks.

enter image description here

Obvious in retrospect...