Probably not a blog-able subject but wanted something to link to so here goes.

1. First thing to do here is strong-name your assembly. Simply go to properties on the project and signing section.

   

2. Build your assembly by pressing F7 or however you wish
3. From here you can use gacutil, add gacutil to a post-build event or simply navigate to dll and drop it into "c:\windows\assembly"