RE:Como obtener la serie del disco duro
Este es un código que tenía de hace años, realmente nunca he chequeado que fuera el serial number, por lo cual te recomiendo lo verifiques.
Option Explicit
Private Declare Function GetVolumeInformation& Lib "kernel32" _
Alias "GetVolumeInformationA" (ByVal lpRootPathName _
As String, ByVal pVolumeNameBuffer As String, ByVal _
nVolumeNameSize As Long, lpVolumeSerialNumber As Long, _
lpMaximumComponentLength As Long, lpFileSystemFlags As _
Long, ByVal lpFileSystemNameBuffer As String, ByVal _
nFileSystemNameSize As Long)
Const MAX_FILENAME_LEN = 256
Private Sub Command1_Click()
Label1.Caption = SerNum("C") 'C is the standard harddisk
End Sub
Public Function SerNum(Drive$) As Long
Dim No&, s As String * MAX_FILENAME_LEN
Call GetVolumeInformation(Drive + ":\", s, MAX_FILENAME_LEN, _
No, 0&, 0&, s, MAX_FILENAME_LEN)
SerNum = No
End Function