Static Code Analysis Guide for Custom Rules (formerly FxCop)
It's doomsday certain that my skateboard finatic son would call them rulz, but I figured that I would call them according to en-EN and not en-US mime type.
Anyway, many customers have asked questions regarding custom rules for VS 2005 static code analysis, so here is recent information from inside the big house.
https://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=214145&SiteID=1
https://blogs.msdn.com/fxcop/archive/2006/03/11/549611.aspx
-Ken