[quote='Fursphere',index.php?page=Thread&postID=206 557#post206557]You can use the PAE switch to get Vista 32 to address more than 4GB of memory.

The question is if the WoW code supports PAE mode.[/quote]See [url='http://msdn.microsoft.com/en-us/library/aa366778.aspx']here[/url] under "Physical Memory Limits: Windows Vista"
"The following table specifies the limits on physical memory for Windows Vista."
Under all versions of 32bit Vista it says 4GB (minus "starter").

PAE or no PAE, it's a lock put in by MS. Even their 32bit "Windows 2003 Server Standard Edition" can't use more the 4GB even with the /PAE switch. Only 32bit Enterprise and above can when enabled with the /PAE switch.

See the bottom of this link .
"Windows XP SP2 and later | AWE API and 4 GB of physical address space"

Also this link :

"Windows XP Professional and Windows Server 2003 Memory Support. The maximum amount of memory that can be supported on Windows XP Professional and Windows Server 2003 is also 4 GB. However, Windows Server 2003, Enterprise Edition supports 32 GB of physical RAM and Windows Server 2003, Datacenter Edition supports 64 GB of physical RAM using the PAE feature."