VisualStudio AddIn

Deployment Path:
* C:\ProgramData\Microsoft\MSEnvShared\Addins

Debug Path
* C:\Users\xxxx\Documents\Visual Studio 20xx\Addins

Browser cache

Http 304 Caching ?? : http://blog.rasikah.com/2011/08/aspnet-mvc-304-not-modified-error.html

IE9 caching: http://blogs.msdn.com/b/ie/archive/2010/07/14/caching-improvements-in-internet-explorer-9.aspx