DOCUMENT:Q110943 30-JUL-2001 [lanman] TITLE :WINSOCK API Init. Error: Not Enough DOS memory PRODUCT :Microsoft LAN Manager PROD/VER: OPER/SYS: KEYWORDS: ====================================================================== SYMPTOMS ======== When starting WinSock applications after other applications have started you get the following error: WINSOCK API Initialization Error: Not enough DOS memory to allocate DOS buffers for all sockets. CAUSE ===== Windows uses a bottom-up memory allocation algorithm. If applications started before WinSock applications exhaust all lower memory, WINSOCK.DLL cannot initialize communication buffers in lower memory to talk to the TCP/IP protocol stack, resulting in the above error message. WORKAROUND ========== Starting at least one WinSock application before any other applications allows WINSOCK.DLL to reserve the lower memory buffers needed for communication with the TCP/IP protocol stack and to retain them during subsequent memory allocations. Additional query words: 2.20 2.2 tcpip sockets ====================================================================== Keywords : ============================================================================= 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.