Error    Message
600       An operation is pending.
601       The port handle is invalid.
602       The port is already open.
603       The buffer is too small.
604       Wrong information specified.
605       Cannot set port information.
606       The port is not connected.
607       The event is invalid.
608       The device does not exist.
609       The device type does not exist.
610       The buffer is invalid.
611       The route is not available.
612       The route is not allocated.
613       Invalid compression specified.
614       Out of buffers.
615       The port was not found.
616       An asynchronous request is pending.
617       The port or device is already disconnecting.
618       The port is not open.
619       The port is disconnected.
620       There are no endpoints.
621       Cannot open the phone book file.
622       Cannot load the phone book file.
623       Cannot find the phone book entry.
624       Cannot write the phone book file.
625       Invalid information found in the phone book.
626       Cannot load a string.
627       Cannot find key.
628       The port was disconnected.
629       The port was disconnected by the remote machine.
630       The port was disconnected due to hardware failure.
631       The port was disconnected by the user.
632       The structure size is incorrect.
633       The port is already in use or is not configured for Remote Access dialout.
634       Cannot register your computer on the remote network.
635       Unknown error.
636       The wrong device is attached to the port.
637       The string could not be converted.
638       The request has timed out.
639       No asynchronous net available.
640       A NetBIOS error has occurred.
641       The server cannot allocate NetBIOS resources needed to support the client.
642       One of your NetBIOS names is already registered on the remote network.
643       A network adapter at the server failed.
644       You will not receive network message popups.
645       Internal authentication error.
646       The account is not permitted to log on at this time of day.
647       The account is disabled.
648       The password has expired.
649       The account does not have Remote Access permission.
650       The Remote Access server is not responding.
651       Your modem (or other connecting device) has reported an error.
652       Unrecognized response from the device.
653       A macro required by the device was not found in the device .INF file section.
654       A command or response in the device .INF file section refers  to an undefined macro.
655       The macro was not found in the device .INF file section.
656       The macro in the device .INF file section contains an undefined macro.
657       The device .INF file could not be opened.
658       The device name in the device .INF or media .INI file is too long.
659       The media .INI file refers to an unknown device name.
660       The device .INF file contains no responses for the command.
661       The device .INF file is missing a command.
662       Attempted to set a macro not listed in device .INF file section.
663       The media .INI file refers to an unknown device type.
664       Cannot allocate memory.
665       The port is not configured for Remote Access.
666       Your modem (or other connecting device) is not functioning.
667       Cannot read the media .INI file.
668       The connection dropped.
669       The usage parameter in the media .INI file is invalid.
670       Cannot read the section name from the media .INI file.
671       Cannot read the device type from the media .INI file.
672       Cannot read the device name from the media .INI file.
673       Cannot read the usage from the media .INI file.
674       Cannot read the maximum connection BPS rate from the media .INI file.
675       Cannot read the maximum carrier BPS rate from the media .INI file.
676       The line is busy.
677       A person answered instead of a modem.
678       There is no answer.
679       Cannot detect carrier.
680       There is no dial tone.
681       General error reported by device.
682       ERROR WRITING SECTIONNAME
683       ERROR WRITING DEVICETYPE
684       ERROR WRITING DEVICENAME
685       ERROR WRITING MAXCONNECTBPS
686       ERROR WRITING MAXCARRIERBPS
687       ERROR WRITING USAGE
688       ERROR WRITING DEFAULTOFF
689       ERROR READING DEFAULTOFF
690       ERROR EMPTY INI FILE
691       Access denied because username and/or password is invalid on the domain.
692       Hardware failure in port or attached device.
693       ERROR NOT BINARY MACRO
694       ERROR DCB NOT FOUND
695       ERROR STATE MACHINES NOT STARTED
696       ERROR STATE MACHINES ALREADY STARTED
697       ERROR PARTIAL RESPONSE LOOPING
698       A response keyname in the device .INF file is not in the expected format.
699       The device response caused buffer overflow.
700       The expanded command in the device .INF file is too long.
701       The device moved to a BPS rate not supported by the COM driver.
702       Device response received when none expected.
703       ERROR INTERACTIVE MODE
704       ERROR BAD CALLBACK NUMBER
705       ERROR INVALID AUTH STATE
706       ERROR WRITING INITBPS
707       X.25 diagnostic indication.
708       The account has expired.
709       Error changing password on domain.
710       Serial overrun errors were detected while communicating with your modem.
711       RasMan initialization failure. Check the event log.
712       Biplex port is initializing. Wait a few seconds and redial.
713       No active ISDN lines are available.
714       Not enough ISDN channels are available to make the call.
715       Too many errors occurred because of poor phone line quality.
716       The Remote Access IP configuration is unusable.
717       No IP addresses are available in the static pool of Remote Access IP addresses.
718       PPP timeout.
719       PPP terminated by remote machine.
720       No PPP control protocols configured.
721       Remote PPP peer is not responding.
722       The PPP packet is invalid.
723       The phone number, including prefix and suffix, is too long.
724       The IPX protocol cannot dial-out on the port because the computer is an IPX router.
725       The IPX protocol cannot dial-in on the port because the IPX router is not installed.
726       The IPX protocol cannot be used for dial-out on more than one port at a time.
727       Cannot access TCPCFG.DLL.
728       Cannot find an IP adapter bound to Remote Access.
729       SLIP cannot be used unless the IP protocol is installed.
730       Computer registration is not complete.
731       The protocol is not configured.
732       The PPP negotiation is not converging.
733       The PPP control protocol for this network protocol is not available on the server.
734       The PPP link control protocol terminated.
735       The requested address was rejected by the server.
736       The remote computer terminated the control protocol.
737       Loopback detected.
738       The server did not assign an address.
739       The remote server cannot use the Windows NT encrypted password.
740       The TAPI devices configured for Remote Access failed to  initialize or were not installed correctly.
741       The local computer does not support encryption.
742       The remote server does not support encryption.
743       The remote server requires encryption.
744       Cannot use the IPX net number assigned by the remote server. Check the event log.
752       A syntax error was encountered while processing a script.