17 April 2012 8:10I want to know what gives me VSPackage that does not give me MEF (I don't know any of the 2 options) and I have to add an add-in called LMZ:
1) ToolWindowPane, which of course the window "LMZ" will open from Tools
2) In Tools | Options to display an entry "LMZ" to change the definitions
3) Be able to create a project of type "LMZ" through File | New | Project | LMZ
18 April 2012 2:33
AFAIK MEF does not give you the ability to add/Modify Visual Studio. MEF is a Framework that you can use in your VSPackage to ease the development of the package (Although I suspect some features are avalaible only through MEF).
So If you want to implement all that your only choice is through a VSPackages (since you modify "low" features of the IDE) and in it if you want you can use MEF).
Here's a good start for documentation on VSPackage.