arcobjects - Finding path where add-ins are installed for ArcGIS Desktop?

I see that my add-ins are installed to C:\Users\Me\AppData\Local\ESRI\Desktop10.0\AssemblyCache{6C90269B-D233-4122-3747-C2AE1131E22C}

Is it possible to find that file path from within the Add-in itself? e.g., someone would click a button and it would tell them the path where the add-in is located.

I want to use this location to store user-defined configuration info.