I like the idea of the integrated Preview Pane. It's great for text files, so
that you don't need to open Notepad to read every file in a directory.

I would like to "register" many other file types with the same preview
handler. For instance, *.sql, *.cs, *.aspx .... however, I can't for the life
of me figure out how I can associate extensions with preview handlers in
Vista.

Anyone know how?