DOCUMENT:Q247061 08-MAY-2002 [exchange] TITLE :XWEB: Computer Running IIS Prompts to Insert Disk in Drive A PRODUCT :Microsoft Exchange PROD/VER:winnt:5.5 OPER/SYS: KEYWORDS:exc55 ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, version 5.5 ------------------------------------------------------------------------------- SYMPTOMS ======== If you use Microsoft Internet Information Service (IIS), a dialog box may be displayed on the computer running IIS that prompts you to insert a disk in drive A. The computer running IIS stops responding until you click Ignore. CAUSE ===== Microsoft Outlook Web Access (OWA) only parses the directory name from a full path string by using a backward slash (\). If a user attaches a file that is wrong, for example, A:/Test.txt, OWA still uses "A:/Test.txt" as the file name (without the path). The global ErrorMode variable is generally set to "SEM_FAILCRITICALERRORS" in the Inetinfo.exe file, so any further processing of the file stops immediately and an error message is generated. However, if the ErrorMode variable is changed, some processes, such as CreateFile, do not stop responding, but they generate a prompt to insert a disk in drive A. Some dynamic-link libraries (DLLs), such as the Mapi32.dll file, actually temporarily change the ErrorMode variable. This problem can occur in a high-stress environment. RESOLUTION ========== A supported fix is now available from Microsoft, but it is only intended to correct the problem described in this article and should be applied only to systems experiencing this specific problem. This fix may receive additional testing at a later time, to further ensure product quality. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Microsoft Exchange Server version 5.5 service pack that contains this fix. To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, please go to the following address on the World Wide Web: http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS NOTE: In special cases, charges that are normally incurred for support calls may be canceled, if a Microsoft Support Professional determines that a specific update will resolve your problem. Normal support costs will apply to additional support questions and issues that do not qualify for the specific update in question. The English version of this fix should have the following file attributes or later: Component: Outlook Web Access +--------------------------+ | File name | Version | +--------------------------+ | Attach.inc | 5.5.2651.59 | +--------------------------+ STATUS ====== Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5. MORE INFORMATION ================ The code in the Attach.inc file is changed so that it parses the path by using either a backward slash (\), a colon (:), or a forward slash (/), so that such invalid characters are not parsed into file names. Additional query words: server ====================================================================== Keywords : exc55 Technology : kbExchangeSearch kbExchange550 kbZNotKeyword2 Version : winnt:5.5 Issue type : kbbug Solution Type : kbfix ============================================================================= 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.