Well, currently I wasn't planning VB version primarily because I don't use VB.
I'll look how difficult it would be.

My guess, learn c#, since you can use languages parallel :-)

I wanted to dig out a subset of functionality XML comments spell checker. I checked 
out AgentSmith and looked over code. I discovered attributes at assembly level and 
few [QuickFix] on other classes and Actions.Xml. 

Still I have not identified where are respective R# entry points, how to build and 
deploy.

R# calls DaemonProcess class, which calls CommentsAnalizer, which performs spell 
checking