[okie_tech]

I've used the Norton Enterprise edition for Exchange but to block by extension can cause more problems than it's worth, politically and socially in the office space. I have not been in a position where I can rule over the end users with an iron fist. I do service work and therefore typically do not work for the company that owns the network and such heavy handed solutions never go well with the customer.

[oc-flyfish]

Sorry to hear that. Maybe you can hit the really nasty (and non-business related extensions) like .scr, .bat, .vbs, etc... I can give you a list if you like.