I really don't know what that module is, however I get the same effect you're looking for using mzscript and text edit2 by doing this...

*script bang !SetDesktopIconsDrives
*script exec !textreplace "$ConfigDir$themevars.rc" "IconDeskDesktopFolder" "IconDeskDesktopFolder \#drives\#"
*script exec !Recycle
*script ~bang

*script bang !SetDesktopIconsDesktop
*script exec !textreplace "$ConfigDir$themevars.rc" "IconDeskDesktopFolder" "IconDeskDesktopFolder .desktop"
*script exec !Recycle
*script ~bang

*script bang !SetDesktopIconsPersonal
*script exec !textreplace "$ConfigDir$themevars.rc" "IconDeskDesktopFolder" "IconDeskDesktopFolder \#ShortcutFolder\#"
*script exec !Recycle
*script ~bang

I'm sure you know how that works in theme popup. Out of curiousity, what do you think is better about the comdlgls.dll and exactly what the hell is it?