DOCUMENT:Q95118 29-SEP-1999 [win3x] TITLE :Windows for Workgroups Open File Handle Limits PRODUCT :Microsoft Windows 3.x Retail Product PROD/VER:WINDOWS:3.1,3.11 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows for Workgroups versions 3.1, 3.11 ------------------------------------------------------------------------------- SUMMARY ======= Windows for Workgroups version 3.1 is limited to 255 open file handles per machine. This Windows for Workgroups limitation is caused by the MS-DOS limit of 255 open files at one time. Windows for Workgroups 3.11 has the following open file handle limits: - In an MS-DOS virtual machine (VM) you are limited to 254 file handles. - The Windows for Workgroups Server VM provides file and print services. The Server VM allows 1024 file handles for remote users if 32-bit file access is enabled and 255 files handles if it is not. - If you are using 32-bit file access, there is a theoretical limit equal to the amount of free RAM. MORE INFORMATION ================ Some applications may require a server to have more than 255 files open at one time. For example, a database application may have 255 files open at one time on a Windows for Workgroups server. If this limit is exceeded, you may receive application-specific error message concerning open files or memory. There are no workarounds to these limitations for Windows for Workgroups. REFERENCES ========== "MS-DOS User's Guide and Reference," version 5.0, pages 252, 493-494 Additional query words: 3.10 maximum fox dbase paradox ====================================================================== Keywords : Technology : kbAudDeveloper kbWFWSearch kbWFW310 kbWFW311 Version : WINDOWS:3.1,3.11 ============================================================================= 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 1999.