I now have vista home premium 64-bit and looking for suites or single av/firewalls that work on this OS. Preferably ones with no missing features (e.g. norton and kaspersky). Using KIS 8 right now but even with quad core and 4gbs of ram it slows the opening of installers by many seconds and sometimes browsing speed. So as i said before Suites or Combinations of products are fine as long as they work on this OS.