Looking at getting NOD 32 v3 Smart Security/Anti Virus (undecided on version) Business edition. It will be required to work on 2 Windows XP and 4 Windows 2000 machines. Specs vary from a P4 with 128MB RAM right up to a Athlon 64 X2 2.3Ghz with 2GB RAM. I have no worry about it running on the high end hardware, but how will it run on the lower spec machines, the P4's? Initial testing seems promising on one of our mid-range computers, but I will be unable to test it on the lower spec machines before deployment. The second requirement and more challenging question is the remote administration application provided with the business editions. The "server" which it will be installed on will not be on 24/7/365. Would it be possible for the clients to get settings/policies etc from the "server" when it is online and get updates direct from Eset? Hopefully it can work that way, its not possible to have it running on the main server (highly customised SCO Openserver). Mail clients used are Outlook (XP & 2003), Outlook Express and Thunderbird. It seems to work well with Outlook and OE but Thunderbird I'm not so sure about. It is just one machine running Thunderbird so its not crucial. We are currently using AVG 7.5 across the business but having tested their latest version (8.0) and read the issues with it on these very forums we wont be renewing with AVG this time round. Version 8.0 is extremely poor. We are also looking at the possibility of Kaspersky 7, it seems to be extremely good at detection but very resource intensive. NOD does look to be the way to go. Any recommendation's? Currently have one machine running on AV home edition trial, I presume the business edition is the same but the ability to remotely administer the client? Hopefully somebody can answer my questions, any tips etc are all welcome.