Currently I'm storing the settings for my custom addins in the registry but this seems like a kludge. I was wondering if there was an official place to store add-in settings. My preference would be to store them where Visual studio stores settings so they can be exported and imported easily.
Is it possible to store add-in settings with Visual Studio settings or is there a better way?
The most straight forward way is to use .Net's Application Settings infrastructure to store any settings. It's a mature framework with designer support for adding a settings infrastructure to your project.
It however does not integrate with Visual Studio's Import / Export settings infrastructure. Getting that working is a very involved process that includes registering yourself as a VSPackage, implementing a settings schema, etc ... I generally find it's really not worth the trouble of getting running (never succeeded)