Microsoft KB Archive/873397

= You receive an &quot;Application Error&quot; error message when you open a Word document in Internet Explorer =

Article ID: 873397

Article Last Modified on 6/1/2006

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APPLIES TO


 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition

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SYMPTOMS
When you open a Microsoft Word document in Microsoft Internet Explorer, you may receive an error message that is similar to the following:

CiceroUIWndFrame: WINWORDD.EXE - Application Error

The exception unknown software exception (0xc0000409) occurred in the application at location 0x00000000

Note The file name Winword.exe is spelled incorrectly in this error message.

This problem occurs when the Word document has a null byte at the end of the file name.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual 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 hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

 Date         Time   Version        Size    File name --- 22-Jun-2004  10:42  6.0.2800.1449  31,744  Iecustom.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

