I don't think HL2 actually runs in 64 bit mode, except under the lost coast
demo. When I watch the process un task manger, it will show HL2*32 when I
play episode 1. But shows HL2.exe when I run the lost coast demo.

I just played about 1 1/2 hours of EP1, so safe to say no hangs for me. I'm
running a dual monitor and I see that the memory usage keeps going up the
longer you play.I started out at 70% usage and when I finally quit I was at
89% usage. Guess I'll have to play it under Vista32 to see if it does the
same thing there. Glad I've got 2GB of ram

I use an X1900XTX and over all it plays fine. But when I run the lost coast
demo, I only get s score of 65-70 fps, instead of 127-130 in Vista32 and 140
in XP. I think they are still tweaking the 64bit code


"Mike Rossi" <MikeRossi@discussions.microsoft.com> wrote in message
news:C14EEBD1-B180-489F-88B9-B2DD2DA3B872@microsoft.com...
>
>
> "Keeep Out" wrote:
>
>> Can someone please tell me if Halo CE, FEAR, Battlefield 2142, and
>> Half-Life
>> 2 are 64 bit Vista compatable?
>
> Half Life 2 is hanging for me in Windows Ultimate x64. I assume this is
> because it defaults to the 64bit version under a x64 operating system. I
> am
> not sure if this is a hardware issue or a software issue. All other steam
> games run fine which leads me to believe that the 64bit version is not
> compatible.