Before testing an addin - Reset Visual Studio’s previous addin knowledge
Historical article · Originally published August 3, 2008; technical details may be outdated.
note to self: if you are testing an installation of an addin on a “dirty” machine where this addin has already been removed and installed many times, be sure to clean visual studio from the previous addin with this command line:
devenv.exe /ResetAddin MyAddinNamespace.Connect