It seems that the program showing the previews isn't
built into explorer, nor is it a COM object, it's
actually "Microsoft Picture and Fax viewer" (I'll call it
MPFV) running in a window. I have currently not found
how to extend MPFV with new filetypes. The only thing
I've found is this MSDN article explaining how to replace
MPFV:
http://msdn.microsoft.com/library/default.asp?
url=/library/en-
us/shellcc/platform/shell/programmersguide/shell_basics/r
eplacepicturefaxviewer.asp
That sounds like alot of work =P but with enough
donations I might do it ;)
