I've finally gotten around to posting the Regular Expression Language Service so you can get to it. This is the project that I wrote during the TechEd VS Extensibility Feature Cookoff where I had to write this in 45 minutes or so. I tried the code...

Check out Ken Hardy, VS Core PM for Extensibility share some info on MSDN TV . If you were at TechEd 2004 San Diego, you might catch yourself in the background...

It occured to me that I didn't discuss what the framework will do when the options you specified in the AddOptionsKey method are needed to be loaded or saved. The framework will eventually call one of two virtual methods that you need to override....

I investigated this question earlier today for an internal VS client and wanted to share the results with the rest of the world... Your VS Package can place data into the solution file (.sln) or solution user options (.suo) file by implementing IVsPersistSolutionOpts...