I have a lot of different extensions for Visual Studio: addins, different language extensions. And now my VS became too heavy. What I want to do is to create several lightweight configurations for visual studio, so that I can start a configuration with a set of extensions that I need at a particular time. I remember that I did something like that before. It involved copying some registry folders and running VS with some commandline parameters, so that VS loads its settings from a particular registry path, but I cannot remember what exactly I did. Some of the addins can be turned off from the Main Menu -> Tools -> Addin Manager, but not all of them. So how do I create several configuraions of Visual Studio?