声明: 
Declare Function GetComputerName Lib "kernel32" Alias "GetComputerNameA" (ByVal lpBuffer As String, nSize As Long) As Long 
例子: 
Public Function MachineName() As String 
Dim sBuffer As String * 255 
If GetComputerName(sBuffer, 255&) <> 0 Then 
MachineName = Left$(sBuffer, InStr(sBuffer, vbNullChar) - 1 
Else 
MachineName = "(未知)" 
End If 
End Function