Who can I set lpszUserName and lpszPassword set to NULL vbsample Set objDSO = GetObject("LDAP:") strPathToComputer = GetStrPathToComputer(strComputerName) WScript.Echo "Accessing object: " + strPathToComputer Const ADS_SECURE_AUTHENTICATION = 1 Const ADS_USE_SEALING = 64 '0x40 Const ADS_USE_SIGNING = 128 '0x80 Set objFveInfos = objDSO.OpenDSObject(strPathToComputer, vbNullString, vbNullString, _ ADS_SECURE_AUTHENTICATION + ADS_USE_SEALING + ADS_USE_SIGNI