For those of us that are or looking at creating and maintaining Windows
Group Policy administrative templates, I've put together a simple
highlighter for the ConTEXT text editor. This highlighter, amongst many
others, highlights keywords that should make working with said file types a
little bit easier.
Best of all the editor and highlighters are free. Free as in beer. :>

ConTEXT programmers editor

Tony Pedretti
TransUnion Corporation