Public Function Netzlaufwerke_verbinden(ByVal LocalDrive As String, ByVal _
      NetworkPath As String) As Boolean
        'NetworkPath = Replace(NetworkPath, " ", "%20")
        MsgBox("LocalDrive: " & LocalDrive & "   NetworkPath: " & NetworkPath)
        'Exit Function
 
        Dim arg As String
        arg = "Net.exe use " & LocalDrive & " " & Chr(34) & NetworkPath & Chr( _
          34) '& " /persistent:yes "
 
        Dim encoding As Encoding = Encoding.GetEncoding(850) ' GetEncoding( 
        ' "ISO-8859-1")
        Dim file As System.IO.StreamWriter
        file = My.Computer.FileSystem.OpenTextFileWriter("c:\temp\Nv.bat", _
          False, encoding) ' c:\temp\Netzlaufwerk_verbinden.bat
        file.WriteLine("C:")
        file.WriteLine("CD \temp")
        file.WriteLine(UCase("Net.exe use " & LocalDrive & " /delete"))
        file.WriteLine(UCase(arg))
        file.WriteLine("Pause")
        file.Close()
 
        ' Diese zweite deaktivierte Möglichkeit beim Verbinden klappt auch nicht 
        ' Nun noch die BATCH - Datei ausführen
        System.Diagnostics.Process.Start("c:\temp\Nv.bat")
 
        '''Dim processInfo As New System.Diagnostics.ProcessStartInfo()
 
        '''processInfo.FileName = "C:\WINDOWS\system32\net"
 
        '''processInfo.Arguments = "use " & LocalDrive & " " & Chr(34) & 
        ' NetworkPath & Chr(34) '"use X: \\ MYPC \ Ordner / USER: MYPC \ TEST P" & _
        "@ ssw0rd"
 
        '''System.Diagnostics.Process.Start(processInfo)
 
    End Function
    Public Function Netzlaufwerke_trennen(ByVal LocalDrive As String) As Boolean
        MsgBox("LocalDrive: " & LocalDrive)
        'Exit Function
 
        Dim arg As String
        arg = "Net.exe use " & LocalDrive & ": /delete"
 
        Dim encoding As Encoding = Encoding.GetEncoding(850) ' GetEncoding( 
        ' "ISO-8859-1")
        Dim file As System.IO.StreamWriter
        file = My.Computer.FileSystem.OpenTextFileWriter("c:\temp\Nt.bat", _
          False, encoding) ' c:\temp\Netzlaufwerk_verbinden.bat
        file.WriteLine("C:")
        file.WriteLine("CD \temp")
        file.WriteLine(UCase(arg))
        file.WriteLine("Pause")
        file.Close()
 
        ' Nun noch die BATCH - Datei ausführen
        System.Diagnostics.Process.Start("c:\temp\Nt.bat")
    End Function

Public Class Form1
 
    Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) _
      Handles Button1.Click
 
        Dim Laufwerksbuchstabe As String = TextBox1.Text 'Eingabe z. B. J:
        Dim Share As String = TextBox2.Text 'Eingabe z. B. 
        ' "\\Rechnername\Freigabe"
 
        If Netzlaufwerke_verbinden(Laufwerksbuchstabe, Share) Then
            MessageBox.Show("Der Netzwerkpfad '" & Share & "' wurde dem" & _
              "Laufwerksbuchstaben '" & Laufwerksbuchstabe & "' zugewiesen!")
        Else
            MessageBox.Show("Das Verbinden von '" & Share & "' zu '" & _
              Laufwerksbuchstabe & "' hat nicht funktioniert!")
        End If
 
    End Sub
 
    Public Function Netzlaufwerke_verbinden(ByVal LocalDrive As String, ByVal _
      NetworkPath As String) As Boolean
 
        MsgBox("LocalDrive: " & LocalDrive & "   NetworkPath: " & NetworkPath)
 
        Dim Trennbefehl As String = "Net.exe use " & LocalDrive & "" & _
          "/delete".ToUpper
        Dim Verbindenbefehl As String = "Net.exe use " & LocalDrive & " " & Chr( _
        34) & NetworkPath & Chr(34)
        Dim Batchdatei As String = "c:\temp\Nv.bat"
 
If System.IO.File.Exists(Batchdatei) Then
System.IO.File.Delete(Batchdatei)
End If
 
        Dim file As New System.IO.StreamWriter(Batchdatei)
        file.WriteLine(Trennbefehl)
        file.WriteLine(Verbindenbefehl)
        file.Close()
 
        Process.Start(Batchdatei)
 
        System.Threading.Thread.Sleep(500)
 
        If DriveExists(LocalDrive) Then
            Return True
        Else
            Return False
        End If
 
    End Function
 
    Public Function DriveExists(ByVal sDrive As String) As Boolean
        Try
            Dim Drive As New System.IO.DriveInfo(sDrive)
            Return True
        Catch ex As Exception
            Return False
        End Try
    End Function
 
 
End Class

EALA FREYA FRESENA