Everything compiles file. I can install the addin itself (it shows up in the Programs/Features applet). But nothing in the registry in either currentUser or Localmachine hives for the addin and it doesn't load (of course).
Starting word from VS2010 makes no difference - no breakpoints are hit and addin is not loaded.
Doesn't appear in the Options | Com Addins list either.
Am using O2K10 with VS2010.
Anything else I should look for?