DOCUMENT:Q167375 09-AUG-2001 [winnt] TITLE :Err Msg: Error Opening Modem.inf File in the RAS Directory PRODUCT :Microsoft Windows NT PROD/VER:4.0 OPER/SYS: KEYWORDS:kberrmsg kbhw dun kbHardware kbDialUp ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0 - Microsoft Windows NT Workstation version 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== When you try to configure Remote Access Services (RAS) using the Network tool in Control Panel, you may receive the following error messages: Error opening Modem.inf file in the RAS directory. Failed to initialize device list. Error opening Modem.inf file in the RAS directory. Dial-Up Networking Setup encountered an unknown failure and will terminate now. Please contact your administrator to determine the cause of the problem. Dialing out using Dial-Up Networking may work fine, however. CAUSE ===== The Modem.inf file in the %SystemRoot%\System32\Ras folder is missing or damaged. RESOLUTION ========== Expand a new copy of the Modem.inf file from the Windows NT 4.0 CD-ROM to the %SystemRoot%\System32\Ras folder using the following steps: 1. If a Modem.inf file already exists in the %SystemRoot%\System32\Ras folder, rename it to Modem.old. 2. Place the Windows NT 4.0 CD-ROM in the CD-ROM drive. 3. Type the following line at a command prompt: expand d:\i386\modem.in_ c:\winnt\system32\ras\modem.inf NOTE: This command assumes that Windows NT is installed in the Winnt folder on drive C and that drive D is the CD-ROM drive. If this is not the case, adjust the command as necessary. MORE INFORMATION ================ Windows NT 4.0 does not use the Modem.inf file for Dial-Up Networking. However, the Modem.inf file is required for the setup and configuration of modem devices in RAS properties. If the file is missing or damaged, RAS cannot display the list of devices. Additional query words: information ====================================================================== Keywords : kberrmsg kbhw dun kbHardware kbDialUp Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 Version : 4.0 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.