Is there a antivirous program out there that will run in 64 bit mode?

why bother when that version of xp is not stable...only for test purposes right now...you shouldn't use it as a primary just yet...my opinion DFI lanparty 875p-t LGA775 2.8 @ 3.44 2 x 512 Geil Ultra Platinum DDR500 @ DDR490 128 meg Radeon 9800 Pro DUAL 36 GIG WD Raptors RAID0 21 in. 19.8 viewable Sony Trinitron 4 Mbps cable

if you want a stable 64 bit system try out linux. p4 at 3330mhz 256mb pc3200 80gb wd hdd geforce 4 mx440 teporary Audigy 2 ZS dvd and cd burner only 15 so i am tight on cash

The release candidate 2 from MS seem prety good to me, running prety darn good for me. The drivers and various support drivers are becoming more and more readily available. The larger companies like Trend micro and Simantec do have 64bit version available, as test software. But in real terms i suspect you wont need it, 99.99 % of bugs are designed to attack the other version of xp not the 64bit Beta version. I am using it and have been for a while now with no anti virus and havent been bugged.. To date that is I do agree though Linux is dam good IF IT AINT BROKE, DONT FIX IT A8N-SLI Deluxe AMD X64 3500+ Wnchst Corsair 2x512 DDR400 Dual Channel GV-NX6600128D PCIX Graphics Card Ggbyte GT Pro CPU Cooler Zalman VF700-CU VGA Cool