Currently looking at deployment options for Windows 7. One of the questions we're looking into is 32 bit vs 63 bit. I'm trying to run a SCCM report against our estate to identify which machines are 64-bit capable (whether or not they're currently running a 64-bit OS).

There seem to be a few resources out on the net for this (here, here and here) but none of them seem to work right on machines running 32-bit Windows XP. 32-bit XP machines seem to always report that they're running on 32-bit hardware.

The query I'm currently running is:

select sys.netbios_name0, sys.Operating_System_Name_and0 as OperatingSystem, 
case when pr.addresswidth0=64 then '64bit OS'
when pr.addresswidth0=32 then '32bit OS'
end as [Operating System Type],
case when pr.DataWidth0=64 then '64bit Processor'
when pr.DataWidth0=32 then '32bit Processor'
end as [Processor Type],
case when pr.addresswidth0=32 and pr.DataWidth0=64 then 'YES'
end as [32-bit OS on x64 processor]
from v_r_system sys
join v_gs_processor pr on sys.resourceid=pr.resourceid

I've also tried this, which reports all "Windows XP Professional" systems are on "X86-based PC", not x64 based even though a number of them definitely are:

select
    OS.Caption0,
    CS.SystemType0,
    Count(*)
from
    dbo.v_GS_COMPUTER_SYSTEM CS Left Outer Join dbo.v_GS_OPERATING_SYSTEM OS on CS.ResourceID = OS.ResourceId
Group by
    OS.Caption0,
    CS.SystemType0
Order by
    OS.Caption0,
    CS.SystemType0

For instance we have a set of Dell Latitude E4200 laptops. Some of these are running 32-bit Windows XP SP3, some of them are running 32-bit Windows 7, some are running 64-bit Windows 7. All the laptops are identical, having come from the same order. Out of these the Windows 7 (32 and 64-bit) report that the hardware is 64-bit capable, and the Windows XP machines report that they're only 32-bit capable.

Does anyone know if there's another value I can query to get the hardware's capabilities correctly on XP, or is there a hotfix that will get it reporting the correct info?