Domain UserName

I'm working in a NT domain, from a PC running Windows 9x. How can I know the user currently logged in?
Thanks in advance

Here you go:

Code:

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Option Explicit
Private Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpBuffer As String, nSize As Long) As Long


Private Sub Command1_Click()
    Dim strBuffer As String
   
    strBuffer = Space(125)
    If GetUserName(strBuffer, Len(strBuffer)) Then
        MsgBox Left(strBuffer, InStr(strBuffer, vbNullChar) - 1)
    End If
End Sub

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