DOCUMENT:Q108650 07-MAY-2002 [homegame] TITLE :Flight Simulator 5.0 Err Msg: EMM386.EXE Exception Error #12 PRODUCT :Microsoft Home Games PROD/VER:MS-DOS:5.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Flight Simulator for MS-DOS, version 5.0 ------------------------------------------------------------------------------- SYMPTOMS ======== If POWER.EXE is installed, it may produce the error message: EMM386.EXE exception error #12 You may receive this error message or the system may stop responding (hang) when you change airports or situations in Flight Simulator 5.0. RESOLUTION ========== "Exception error # 12" indicates a "Stack Overflow". Removing EMM386.EXE may reveal the true error message; however, Flight Simulator 5.0 does not run very well without it. Changing the Stacks= setting in the CONFIG.SYS to read Stacks=18,256 may correct this. The maximum size for the Stacks= setting is 64,512. The presence of POWER.EXE in the CONFIG.SYS may also cause an "Exception error # 12" error. Removing this line, and/or using a startup (boot) disk may also correct this problem. MORE INFORMATION ================ The Power program (POWER.EXE) monitors keyboard polling and the Application Idle interrupt to determine if a system is idle; it monitors use of the hard disk, video functions, and MS-DOS functions to determine if a system is busy. POWER.EXE may incorrectly determine that your machine is idle if you are using communication programs, computationally intensive programs, or other programs that infrequently access the hard disk. When POWER.EXE detects that the system is idle, it halts or slows down the CPU, which adversely affects application performance if your machine is not truly idle. Additional query words: 5.00 flightsim fltsim dos 12 crash hung freeze up lock lockup fs5 ====================================================================== Keywords : Technology : kbGamesSearch kbFlightSimSearch kbFlightSim500DOS kbSimSearch Version : MS-DOS:5.0 Issue type : kbprb ============================================================================= 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 2002.