Calcular la etiqueta o label de un disco duro:

Hallar la etiqueta o label del mismo disco duro en Visual Basic 6.0:

Escribir el siguiente código:
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)

Private Sub Form_Load()
Dim cad1 As String * 256
Dim cad2 As String * 256
Dim numSerie As Long
Dim longitud As Long
Dim flag As Long
unidad = "D:\"
Call GetVolumeInformation(unidad, cad1, 256, numSerie, longitud,
flag, cad2, 256)
MsgBox "Label de la unidad " & unidad & " = " & cad1
End Sub