Greetings, With both NOD32 Antivirus Home V4.0 and NOD32 Antivirus Business Edition V4.0, VPN performance is absolutely unusable. This problem did not exist with V3.0, but recently Vista Security Center will no longer monitor NOD32 V3.0, and only recognizes V4.0, thus requiring an update to V4.0... which in turn yields absolutely horrible and unusable performance with VPN. For example, establish a VPN connection then use telnet or SSH to a server and there is anywhere from 3 to 10 seconds latency for every 2-3 keystrokes.. this makes any kind of VPN access impossible. The ability to go into Protocols and set program exclusions is gone with V4.0 so this option is also not possible. Uninstall NOD32 and reboot- problem solved. Performance is restored. Interestingly enough disabling all four NOD32 protections does not help- the product must actually be fully uninstalled to restore VPN performance. Is there another way to either permanently exclude certain applications from NOD32, a way to bypass VPN (such as OpenVPN, Cisco or IPSec) or must a new AV product be purchased? Thanks!