Get Windows Product Key

Product Key.vbs

Set WshShell = CreateObject("WScript.Shell")
MsgBox ConvertToKey(WshShell.RegRead("HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\DigitalProductId"))

Function ConvertToKey(Key)
  Const KeyOffset = 52
  i = 28
  Chars = "BCDFGHJKMPQRTVWXY2346789"
  
  Do
    Cur = 0
    x = 14
    
    Do
      Cur = Cur * 256
      Cur = Key(x + KeyOffset) + Cur
      Key(x + KeyOffset) = (Cur \ 24) And 255
      Cur = Cur Mod 24
      x = x -1
    Loop While x >= 0
    
    i = i -1
    KeyOutput = Mid(Chars, Cur + 1, 1) & KeyOutput
    
    If (((29 - i) Mod 6) = 0) And (i <> -1) Then
      i = i -1
      KeyOutput = "-" & KeyOutput
    End If
  Loop While i >= 0
  
  ConvertToKey = KeyOutput
End Function