Microsoft proxy as a FW

[Matt Doughty <doughtym () bsjkk co jp>]

Ok guys... I know that using M$ Proxy as a FW is stupid...
Unfortunately, a few people in management don't.......
I need to document what using M$ proxy as a firewall 
isn't a good idea. Please anyone who can point me towards
good documentation on this I would appreciate it.

//Matt