$strComputer = "."
$objWMIService = GetObject("winmgmts:\\" + $strComputer + "\root\cimv2")
$colItems = $objWMIService.ExecQuery("Select * from Win32_BIOS",,48)
For Each $objItem in $colItems
     ?  "ReleaseDate: " + $objItem.ReleaseDate
Next