From: "Antti Kurenniemi" 

32-bit Windows XP supports more memory than 4G, I think it's in the
"way more" category, but each process only gets to use 4Gb (2 for
itself and 2 for the kernel operations, shared by other processes). You
don't need to go to 64 bits until you have apps that need to use memory
more than 2 Gb - and that's in-memory, so any app that handles larger
amounts of data can do so, by using a database or a file or something like
that.

It will be a long time before you *need* 64-bits, but of course for example
video editing would be cool if it could be done in memory instead of on
disk.


Antti Kurenniemi

"Randall Parker"

wrote in message news:444a7062{at}w3....
> How far up can Win XP go with using memory? 2 Gigs?
>
> I'm thinking about what would be an ideal next desktop machine and am
> wondering whether to get a 64 bit processor and Windows for 64 bit.
>
> How good is the driver coverage for Win64?
>
> If one uses Win32 apps such as CD making and DVD making apps and other
> apps that use device drivers will they work on Win64?

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