Workaround Code:

 Code:
If $OS = "Windows 7 Professional Edition"
	$OSREG = ReadValue("HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion", "ProductName")
	$OSREG = RTrim($OSREG)
	
	If $OSREG = "Windows 8 Release Preview"
		$OS = "Windows 8 Release Preview"
		$MSWINOS = "Windows 8 Release Preview"
		$OSELEVATE = "YES"
		$OSSERVER = "NO"
	EndIf
EndIf