DOCUMENT:Q117270 08-AUG-2001 [winnt] TITLE :Named Pipe Applications Without Network Adapter Fail PRODUCT :Microsoft Windows NT PROD/VER:3.1 3.5 OPER/SYS: KEYWORDS:kbnetwork ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 3.1 - Microsoft Windows NT Workstation version 3.1 - Microsoft Windows NT Advanced Server, version 3.1 - Microsoft Windows NT Workstation version 3.5 - Microsoft Windows NT Server version 3.5 ------------------------------------------------------------------------------- SYMPTOMS ======== When you run an application that uses named pipes as an Interprocess Communication (IPC) mechanism on a Windows NT computer without network support installed, it fails to connect to the named pipe resource either locally or remotely. RESOLUTION ========== For remote named pipe resources, the system must have a physical network card installed. However, for local named pipe resources, you can install the MSLoopback adapter driver for support. MORE INFORMATION ================ MSLoopback driver provides the redirector for both the Win16 and Win32 named pipe applications. Windows NT provides named pipes as one of the IPC mechanisms for applications to share data either on the same computer or across the network. Named pipes are implemented as a file system. All the calls to this file system by WOW and Win32 resolve to the redirector. If there is no network adapter installed, there is no redirector available for both 32-bit and 16-bit applications, thus these applications fail. Additional query words: prodnt npfs np sql ====================================================================== Keywords : kbnetwork Technology : kbWinNTsearch kbWinNTWsearch kbWinNT350search kbWinNTW350 kbWinNTW350search kbWinNTW310 kbWinNTSsearch kbWinNTS350 kbWinNTS310 kbWinNTAdvSerSearch kbWinNTAdvServ310 kbWinNTS350search kbWinNTS310search kbWinNT310Search kbWinNTW310Search Version : 3.1 3.5 ============================================================================= 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.