The ITextDocument::Open method causes data corruption every 4,096th character if the value of the CodePage parameter is set to CP_UTF8 (871005)


The information in this article applies to:

  • Microsoft Windows Server 2003, Standard Edition
  • Microsoft Windows Server 2003, Enterprise Edition
  • Microsoft Windows Server 2003, Datacenter Edition
  • Microsoft Windows 2000 Server SP4
  • Microsoft Windows XP Home Edition SP1
  • Microsoft Windows XP Professional SP1
  • Microsoft Windows XP Professional SP2
  • Microsoft Windows XP Home Edition SP2

SYMPTOMS

Every 4,096th character is corrupted if you use the ITextDocument::Open method to load a Rich Text Format (.rtf) file into a rich edit control.

CAUSE

This problem occurs if the value of the CodePage parameter is set to CP_UTF8.

RESOLUTION

Hotfix information

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 Microsoft 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.

File information

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. Microsoft Windows Server 2003
   Date         Time   Version       Size       File name      Platform
   --------------------------------------------------------------------
   28-Jul-2004  20:20  5.31.23.1219    415,744  Riched20.dll   x86
   28-Jul-2004  20:08  5.31.23.1219  1,313,280  Riched20.dll   IA-64
   28-Jul-2004  20:20  5.31.23.1219    415,744  Wriched20.dll  IA-64
Microsoft Windows XP Service Pack 1
   Date         Time   Version       Size     File name
   -------------------------------------------------------
   18-Aug-2004  20:28  5.30.23.1221  438,784  Riched20.dll
Microsoft Windows XP Service Pack 2
   Date         Time   Version       Size     File name
   -------------------------------------------------------
   18-Aug-2004  20:20  5.30.23.1222  431,616  Riched20.dll
Microsoft Windows 2000
   Date         Time   Version       Size     File name
   -------------------------------------------------------
   28-Jul-2004  20:50  5.30.23.1221  412,944  Riched20.dll

STATUS

Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.

REFERENCES

For more information about the ITextDocument::Open method, visit the following Microsoft Web site:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/richedit/textobjectmodel/textobjectmodelreference/textobjectmodelinterfaces/open.asp

Modification Type:MinorLast Reviewed:6/1/2006
Keywords:kbfix kbHotfixServer kbQFE KB871005 kbAudDeveloper
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