How to determine OS Platform with WMI?

Question

I am trying to figure out if there is a location in WMI that will return the OS Architecture (i.e. 32-bit or 64-bit) that will work across \"all\" versions of Windows. I though

Answer 1

If you need the Operating System architecture as opposed to the processor, this works if you're confident you have no 64 bit Windows 5.x systems:

Set colItems = objWMI.ExecQuery("Select * from Win32_OperatingSystem",,48)  
on error resume next  

For Each objItem in colItems  
    Ver = objItem.Version  
    OSname = split(objItem.Name,"|")  
    Arch = "32-bit"  
    if left(Ver,3) >= 6.0 then    ' 5.x doesn't support this property  
        Arch = objItem.OSArchitecture  
    end if  
Next  
wscript.echo " OS Version: " & Ver & " {" & trim(OSname(0)) & " " & Arch & "}"