Using apt for software distrubution.

Greetings,

currently I'm playing with the idea to use apt and a local rep as a backend 
for automatic software installation - even for pure windows programs.
Has debian/win that far?
In fact, that means converting real installer based package into .deb files 
and also integrate Debian base utilities into Windows, its boot-sequence and 
so on.
In this case the system and user registry must also be accesable via dpkg. Is 
there a workaound for that problem?
Is chrooting windows hypothetical or a real chance?

Keep smiling
yanosz