DOCUMENT:Q109527 29-SEP-1999 [win3x] TITLE :32-Bit File Access ErrMsg: Exit Windows and Run the MS-DOS... PRODUCT :Microsoft Windows 3.x Retail Product PROD/VER:WINDOWS:3.11 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows for Workgroups version 3.11 ------------------------------------------------------------------------------- SYMPTOMS ======== When you run an application (such as Microsoft Undelete) under Windows for Workgroups version 3.11, you may receive the following error message: Exit Windows and run the MS-DOS version of this utility. Interrupt 26 (Direct sector write) blocked to preserve volume integrity. NOTE: If you run Microsoft Undelete and choose Find to search for deleted files, Undelete may display the following error message: System Error Divide by zero or Overflow error CAUSE ===== This problem occurs when you run any application or utility that calls interrupt 26 (such as Microsoft Undelete) when 32-bit file access is enabled. WORKAROUND ========== To work around this problem either: - Disable 32-bit file access. -or- - Run the MS-DOS-based version of the application that is calling interrupt 26. NOTE: Microsoft recommends that you do not run MS-DOS-based disk utilities from the Windows for Workgroups MS-DOS Prompt. These utilities should be run before or after your Windows for Workgroups session. KBCategory: kbtool kbdisplay kbenv kberrmsg KBSubcategory: wfw wfwg Additional query words: 311 vfat remove MWUNDEL.EXE mwundelete ====================================================================== Keywords : Technology : kbAudDeveloper kbWFWSearch kbWFW311 Version : WINDOWS: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.