Obtener Id del procesador de un PC
Private Function CpuId() As String
Dim computer As String
Dim wmi As Variant
Dim processors As Variant
Dim cpu As Variant
Dim cpu_ids As String

    computer = "."
    Set wmi = GetObject("winmgmts:" & _
        "{impersonationLevel=impersonate}!" & _
        computer & "rootcimv2")
    Set processors = wmi.ExecQuery("Select * from " & _
        "Win32_Processor")

    For Each cpu In processors
        cpu_ids = cpu_ids & ", " & cpu.ProcessorId
    Next cpu
    If Len(cpu_ids) > 0 Then cpu_ids = Mid$(cpu_ids, 3)

    CpuId = cpu_ids
End Function