DOCUMENT:Q85676 06-NOV-1999 [win16sdk] TITLE :Windows Help and Help Compiler Capacity Limits PRODUCT :Microsoft Windows Software Development Kit PROD/VER:WINDOWS:3.1 OPER/SYS: KEYWORDS:kb16bitonly ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows Software Development Kit (SDK) 3.1 ------------------------------------------------------------------------------- SUMMARY ======= The following lists the limits of the Windows Help application, version 3.1. These limits are subject to change in future versions. Paragraph size(1): approximately 32,000 bytes Topic title string length: 127 characters Topics per RTF source file: approximately 32,700 Topics per help file: 42,000,000 By-reference bitmaps per help file : 32,767 Help file size: approximately 2,157,000,000 bytes (2 gigabytes) Topic footnote character limit: 1023 characters Keywords per help file: limited only by file size Keyword length: 255 bytes Topics per keyword(2): < 800 Browse sequence length: limited only by the number of topics Bookmarks per help file: limited only by file size Annotations per topic: 1 Annotations per help file: 32,767 History list length: 40 topics Text that can be copied to clipboard: limited only by machine memory Macro length: 512 characters Main windows per topic: 1 Secondary windows per topic: 5 1. The maximum paragraph size includes graphics pasted into the RTF source. Therefore, each pasted graphic is limited to 32,000 bytes. To work around this limitation, import large bitmaps by reference. 2. Performance degrades for files with more than several hundred topics. The Search dialog box displays a maximum of 400 topics. Additional query words: no32bit 3.10 HC HCP.EXE HC31.EXE WinHelp ====================================================================== Keywords : kb16bitonly Technology : kbAudDeveloper kbWin3xSearch kbSDKSearch kbWinSDKSearch kbWinSDK310 Version : WINDOWS:3.1 ============================================================================= 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.