LPSNMP_MGR_SESSION session ;
 session = SnmpMgrOpen("localhost", "public",  1000 ,  1 ) ;

 if (session!=NULL)
  {
   RFC1157VarBindList *BindList ;
   RFC1157VarBind *Bind ;

   AsnInteger errorStatus ;
   AsnInteger errorIndex ;

   try
    {
     BindList->list = (RFC1157VarBind*)SnmpUtilMemAlloc(sizeof(RFC1157VarBind)) ;
     BindList->len =  1  ;

     AsnObjectIdentifier Oid ;
     AnsiString asOid = ".iso.org.dod.internet.mgmt.mib-2.system.sysDescr" ;

     if (SnmpMgrStrToOid(asOid.c_str(), &Oid))
      {
       BindList->list->name = Oid ;
       BindList->list->value.asnType = ASN_NULL ;

       bool bSuccess = SnmpMgrRequest(session, ASN_RFC1157_GETNEXTREQUEST,
                              BindList, &errorStatus, &errorIndex) ;
       if (bSuccess)
        ;
      }
    }
   __finally
    {
     SnmpUtilMemFree(BindList->list) ;
    }
  }