Conduit Toolbar and Windows Application

I have a button inside of "Conduit Toolb开发者_Python百科ar". "OnClick" I need to launch MyApp.exe (if the application already installed) or to open download page...

I know that if it was my own toolbar then app launching and other things are easy! But I must use this @#%#ing "conduit".

I'm looking for any help (code/links/pictures...)!

I gave up! We just made a little http server that starts on windows startup. And now I can send from toolbar any message to localhost and let the server do the rest.

I hope this answer will be helpful for somebody.