以下代码用c#怎么写？用什么类啊？谢谢

Dim objSotSec
          Set objSotSec = Server.CreateObject("SOTSecurity.LDAPUser")            
         strDN=objSotSec.GetDN("ids.,"389","","","ou=people,ou=intranet,dc=soft,dc=com","uid", strCoreID)
         result=False
         If strDN <>  "" Then
        result=objSotSec.Authenticate("ids., "389", strDN, strPassword)
。。。。。。。。。。。

上面是用VB写的啊