When you say that the IIS service has to be restarted, do you need to do this manually or will it restart itself?
The office in which I am running the network now has purchased NAV 8.1 Small Business with Exchange filter (prior to my arrival) and I am supposed to install it on the server this week. Me and maybe 3 other people use outlook web access. We are not going to be installing the client AV programs at this time*, just want protection for the server's files & e-mail hopefully!
*We are admist an inventory of our systems, we have a mish mash of and older Symantec AV which many are using, and also many OEM systems which still have months left on their initial subscriptions. As these run out, we will be upgrading them to Symantec 8.1 and buying more licensing as appropriate (gotta recover from the 25 CAL pack for small business server 2003!)
Mark