Colin Barnhorst wrote:
Read the table I linked. No, MS did not make a decision not to support
more than 4GB in Vista. No 32bit Windows clients support more than 4GB,
XP included. Windows Server 2003 Standard Edition and Windows Home
Server don't either. Higher 32bit editions of Windows 2003 and 2008 do
so through PAE.

I know that only a few of their editions supports more than 4GB, and
that a decision they made. It is not because it is a "32-bit OS"