I thought motherboards did not have serial numbers, only cpus (PIII and up), but I found this. Here is code to do this in VB, maybe someone out there can modify it to work with VFP? (George and Ed know alot about scripting)

YOU MUST HAVE WMI INSTALLED AND A REFERENCE TO
Microsoft WMI Scripting Library IS REQUIRED IN VB FOR THIS TO WORK

Public Function MBSerialNumber() As String

Dim objs As Object

Dim obj As Object
Dim WMI As Object
Dim sAns As String


Set WMI = GetObject("WinMgmts:")
Set objs = WMI.InstancesOf("Win32_BaseBoard")
For Each obj In objs
  sAns = sAns & obj.SerialNumber
 If sAns < objs.Count Then sAns = sAns & ","
Next
MBSerialNumber = sAns
End Function

>I have already sent a message for everybody, but I think you didn't see it...
>
>Thanks anyway...
>
>Silvio