一个老外写的创建虚拟目录（VB.net）

Function CriaDiretorioVirtual(ByVal vdirname As String, ByVal serverID As String, ByVal vdirPath As String, ByVal criaApplication As Boolean) As DirectoryEntry
        Dim newvdir As DirectoryEntry
        Dim root As DirectoryEntry
 
        root = New DirectoryEntry("IIS://localhost/W3SVC/" + serverID + "/Root")
 
        newvdir = root.Children.Add(vdirname, "IIsWebVirtualDir")
        newvdir.Properties("Path")(0) = vdirPath
 
        If criaApplication Then
            newvdir.Invoke("AppCreate", True)
            newvdir.Properties("AppFriendlyName")(0) = vdirname
            newvdir.Properties("AppIsolated")(0) = 2
        End If
        newvdir.CommitChanges()
 
        Return newvdir
    End Function