I'm a NOD32 user and just to see how my system was prepared to Windows Vista I downloaded and executed the Windows Vista Upgrade Advisor. This is what the Advisor "says" about NOD32: "Before you upgrade to Windows Vista, uninstall this program. After upgrade, this program will be blocked from re-installing due to known compatibility issues. Please visit the vendor's website for possible solutions." This means that we can't use NOD32 with Windows Vista for now. I hope this will not be an issue in the future, since we don't know what role can play security software inside Vista.