Declare Function GetComputerName Lib "kernel32" Alias "GetComputerNameA" (ByVal lpBuffer As String, nSize As Long) As Long




Private Sub Command1_Click()
Dim strBuffer As String
  Dim lngBufSize As Long
  Dim lngStatus As Long
  
  lngBufSize = 255
  strBuffer = String$(lngBufSize, " ")
  lngStatus = GetComputerName(strBuffer, lngBufSize)
  If lngStatus <> 0 Then
     MsgBox ("Computer name is: " & Left(strBuffer, lngBufSize))
  End If
End Sub