DOCUMENT:Q115518 20-NOV-1999 [pcmail] TITLE :FFAPI: Memory Usage for MS-DOS Get and Put Executable Files PRODUCT :Microsoft Mail For PC Networks PROD/VER::2.1,3.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Mail Gateway to FFAPI, versions 2.1, 3.0 ------------------------------------------------------------------------------- SUMMARY ======= The Microsoft Mail File Format Application Programming Interface (FFAPI) runs in conventional memory. Since MS-DOS and network drivers also run in the same memory, sometimes you may not be able to load or run FFAPI. FFAPI loads the following files into memory: GLB\NETWORK.GLB XTN\*.XTN GLB\GROUP.GLB GLB\ACCESS2.GLB As more postoffice users are added, memory available to process messages decreases. MORE INFORMATION ================ Approximate memory usage breakdown: 1. Locally defined users take 35 bytes each. 2. Locally defined groups take 31 bytes each. 3. Each local user defined as a remote call requesters take an additional 36 bytes each. 4. Any gateway access component takes 90 bytes each. 5. Directly defined and indirectly defined postoffices each take 100.5 bytes. 6. Any of those defined postoffices that are connected by Modem or X.25 take an additional 48.6 bytes. Additional query words: 2.10 3.00 ====================================================================== Keywords : Technology : kbMailSearch kbMailGateSearch kbZNotKeyword3 kbMailGateFFAPI300 kbMailGateFFAPI210 Version : :2.1,3.0 ============================================================================= 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 1999.