and then the AV, and then be clicked on (or activated in another way) before it can do its thing. That's the same whether it's an XP virus,
No Keef.
I think you have to go back and read up on your fundamentals.
Anti-virus and all other software runs on top of the Operating System and relies on APIs and other aspects of the Operating System to function.
Compromised OS integrity equals compromised software functionality. No two ways about it... that's the hard facts. They
WILL have a way to bypass Anti-Virus... not IF... but WHEN, and that "when" will come sooner than the cling-on brigade would like to hope !
Just look at all the EXTRA security measures you get in operating systems later than XP if you want another good reason to upgrade :

(Image courtesy of
this article... which should be one of many on the required reading list for the cling-on brigade)