An e-mail message is corrupted after the Disclaimer rule is enabled on an Exchange Server 2007 or 2010 server

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Article ID: 935489 - View products that this article applies to.
Important This article contains information about how to modify the registry. Make sure that you back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows registry
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Consider the following scenario:
  • You have a mixed Microsoft Exchange Server 2003 and Microsoft Exchange Server 2007 or Exchange Server 2010 mail environment.
  • The Disclaimer rule is enabled on the Exchange 2007 or Exchange 2010 server.
  • An e-mail message that is generated from Microsoft Office Outlook Web Access on Exchange 2003 is routed by using an Exchange 2007 or Exchange 2010 Server.
In this scenario, the e-mail message is corrupted. When this problem occurs, the e-mail message is shown as the following HTML format.

< h t m l > < h e a d > < m e t a h t t p - e q u i v = " C o n t e n t - T y p e " c o n t e n t = " t e x t / h t m l ; c h a r s e t = u t f - 1 6 " > < / h e a d > < b o d y > <HTML dir=ltr><HEAD> <META http-equiv=Content-Type content="text/html; charset=unicode"> <META content="MSHTML 6.00.3790.2858" name=GENERATOR></HEAD> <BODY> <DIV><FONT face=Arial color=#000000 size=2>aaaa</FONT></DIV></BODY></HTML< b r > < h r > < f o n t f a c e = " A r i a l " c o l o r = " G r a y " s i z e = " & # 4 3 ; 0 " > M y D i s c l a i m e r < b r > < / f o n t > < / b o d y > < / h t m l >


This problem occurs because Outlook Web Access for Exchange 2003 sets an e-mail message to an incorrect character set. When the message is routed by the Exchange 2007 or 2010 server that has the Disclaimer rule enabled, the e-mail message is converted to incorrect HTML tagging based on the incorrect character set. Then, the message is corrupted by the incorrect tagging.


Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


This hotfix requires Microsoft Exchange Server 2003 Service Pack 2 to be installed on the server because of file dependencies.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
836993 How to obtain the latest service packs for Exchange Server 2003

Restart requirement

You have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

Post-installation information

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
After you install the hotfix, you must create the DisableUnicodePrefix registry entry in order to enable the hotfix. To do this, follow these steps:
  1. Click Start, click Run, type Regedit , and then click OK.
  2. Locate the following registry subkey:
  3. On the Edit menu, point to New, and then click DWORD Value.
  4. In the details pane, type DisableUnicodePrefix for the new value, and then press ENTER.
  5. Right-click DisableUnicodePrefix, and then click Modify.
  6. In the Edit DWORD Value dialog box, click Decimal under Base.
  7. In the Value data box, type 1, and then click OK.
  8. Exit Registry Editor.

If you are using a Non-English version server, you must extract the hotfix that is mentioned in KB 942919 and then replace “Microsoft.Exchange.OMA.UserInterface.dll component manually after you install the hotfix. To do this, follow these steps:
  1. Downalod the hotfix in KB 942919 and unzip the hotfix to “Exchange2003-KB942919-x86.exe”
  2. Run the following command in a command window to extract the Microsoft.Exchange.OMA.UserInterface.dll file.
    Exchange2003-KB942919-x86.exe /x
  3. Replace the new “Microsoft.Exchange.OMA.UserInterface.dll” into the “..\Exchsrvr\OMA\browse\bin” folder.
  4. Restart the computer.

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 item in Control Panel.
Collapse this tableExpand this table
File nameFile versionFile sizeDateTime
Ctrl_calendar.cssNot Applicable1,22601-Dec-200621:15
Ctrl_calendar.htcNot Applicable8,45222-Jun-200716:48
Ctrl_calendar.jsNot Applicable40,02422-Jun-200716:48
Ctrl_calendarview.cssNot Applicable5,41122-Jun-200716:48
Ctrl_calendarview.htcNot Applicable12,90922-Jun-200716:48
Ctrl_calendarview.jsNot Applicable95,60022-Jun-200716:48
Ctrl_calendarviewprn.cssNot Applicable69901-Dec-200621:15
Ctrl_calviewdaily.xslNot Applicable12,98529-Jan-200622:38
Ctrl_calviewmonthly.xslNot Applicable13,11226-Apr-200715:45
Ctrl_calviewweekly.xslNot Applicable9,35929-Jan-200622:38
Ctrl_ctxtmenu.htcNot Applicable98522-Jun-200716:48
Ctrl_ctxtmenu.jsNot Applicable6,28122-Jun-200716:48
Ctrl_datepicker.htcNot Applicable3,56322-Jun-200716:48
Ctrl_datepicker.jsNot Applicable44,29822-Jun-200716:48
Ctrl_formatbar.htcNot Applicable6,57422-Jun-200716:48
Ctrl_formatbar.jsNot Applicable24,23221-Dec-200601:55
Ctrl_formatbar20.htcNot Applicable26,69626-Apr-200715:45
Ctrl_freebusy.cssNot Applicable2,18722-Jun-200716:48
Ctrl_freebusy.htcNot Applicable1,34822-Jun-200716:48
Ctrl_freebusy.jsNot Applicable41,87022-Jun-200716:48
Ctrl_message.htcNot Applicable3,06722-Jun-200716:48
Ctrl_message.jsNot Applicable22,59022-Jun-200716:48
Ctrl_message20.htcNot Applicable21,95817-Nov-200620:37
Ctrl_mimeformatbar.htcNot Applicable6,63522-Jun-200716:48
Ctrl_mimeformatbar.jsNot Applicable14,16021-Dec-200601:55
Ctrl_notify.htcNot Applicable1,35022-Jun-200716:48
Ctrl_notify.jsNot Applicable67501-Dec-200621:14
Ctrl_poll.jsNot Applicable7,38301-Dec-200621:14
Ctrl_reminder.htcNot Applicable1,34922-Jun-200716:48
Ctrl_reminder.jsNot Applicable11,23522-Jun-200716:48
Ctrl_tabpages.htcNot Applicable86322-Jun-200716:48
Ctrl_tabpages.jsNot Applicable2,31922-Jun-200716:48
Ctrl_tree.htcNot Applicable2,73522-Jun-200716:48
Ctrl_tree.jsNot Applicable35,04722-Jun-200716:48
Ctrl_tree_pf.htcNot Applicable2,46922-Jun-200716:48
Ctrl_tree_pf.jsNot Applicable33,89022-Jun-200716:48
Ctrl_tree_pf.xslNot Applicable1,90929-Jan-200622:38
Ctrl_view.htcNot Applicable3,11422-Jun-200716:48
Ctrl_view.jsNot Applicable98,03522-Jun-200716:48
Ctrl_view.xslNot Applicable42,53329-Jan-200622:38
Dlg_anr.jsNot Applicable7,87422-Jun-200716:48
Dlg_editname.jsNot Applicable8,52001-Dec-200621:14
Dlg_editrule.jsNot Applicable27,74522-Jun-200716:48
Dlg_editsignature.jsNot Applicable5,97822-Jun-200716:48
Dlg_gal.jsNot Applicable26,02222-Jun-200716:48
Dlg_gallookup.jsNot Applicable7,23901-Dec-200621:14
Dlg_junk.jsNot Applicable9,84722-Jun-200716:48
Dlg_movecopy.jsNot Applicable6,19022-Jun-200716:48
Dlg_newfolder.jsNot Applicable3,75122-Jun-200716:48
Dlg_options.jsNot Applicable22,70822-Jun-200716:48
Dlg_recurrence.jsNot Applicable23,77501-Dec-200621:14
Dlg_reminder.jsNot Applicable37,11922-Jun-200716:48
Dlg_rules.jsNot Applicable11,62422-Jun-200716:48
Dlg_spell.jsNot Applicable19,54722-Jun-200716:48
Dlg_taskrecurrence.jsNot Applicable27,58601-Dec-200621:14
Dl_appointment.jsNot Applicable11,85601-Dec-200621:14
Dl_composeapptrecurr.jsNot Applicable9,38101-Dec-200621:14
Dl_composecommon.jsNot Applicable5,11722-Jun-200716:48
Dl_composetaskrecurr.jsNot Applicable17,56101-Dec-200621:14
Dl_contact.jsNot Applicable8,18021-Dec-200601:55
Dl_folderview.jsNot Applicable5,20801-Dec-200621:14
Dl_junk.jsNot Applicable5,04022-Jun-200716:48
Dl_misc.jsNot Applicable9,34022-Jun-200716:48
Dl_options.jsNot Applicable6,91722-Jun-200716:48
Dl_task.jsNot Applicable19,63822-Jun-200716:48
Frm_attach.jsNot Applicable5,50822-Jun-200716:48
Frm_composeappt.jsNot Applicable37,80522-Jun-200716:48
Frm_composecdl.jsNot Applicable17,27722-Jun-200716:48
Frm_composecontact.jsNot Applicable36,41222-Jun-200716:48
Frm_composecontact20.jsNot Applicable29,04017-Nov-200620:37
Frm_composenote.jsNot Applicable19,78922-Jun-200716:48
Frm_composenote20.jsNot Applicable17,04326-Apr-200715:45
Frm_composepost.jsNot Applicable13,31822-Jun-200716:48
Frm_composetask.jsNot Applicable41,15422-Jun-200716:48
Frm_forwardmeeting.jsNot Applicable8,01722-Jun-200716:48
Frm_logoff.jsNot Applicable69622-Jun-200716:48
Frm_mimecommon.jsNot Applicable34,11322-Jun-200716:48
Frm_mimenote.jsNot Applicable63,08122-Jun-200716:48
Frm_mimepreviewpane.jsNot Applicable5,82722-Jun-200716:48
Frm_previewpane.jsNot Applicable3,81522-Jun-200716:48
Frm_readappt.jsNot Applicable16,00222-Jun-200716:48
Frm_readnote.jsNot Applicable7,70422-Jun-200716:48
Frm_readpost.jsNot Applicable6,47822-Jun-200716:48
Frm_readreports.jsNot Applicable4,41722-Jun-200716:48
Frm_readtask.jsNot Applicable6,72622-Jun-200716:48
Owaprint.cssNot Applicable2,69622-Jun-200716:48
Owastyle.cssNot Applicable13,58422-Jun-200716:48
Owastyledl.cssNot Applicable2,18722-Jun-200716:48
Pdec.htcNot Applicable2,55526-Apr-200715:45
Pdec.jsNot Applicable16,06926-Apr-200715:45
Pdec30.htcNot Applicable2,77322-Jun-200716:48
Pdec30.jsNot Applicable16,25322-Jun-200716:48
Preload.htmNot Applicable6,30822-Jun-200716:48
Sps.cssNot Applicable1,39901-Dec-200621:15
Style-chs30.cssNot Applicable39401-Dec-200621:15
Style-cht30.cssNot Applicable38101-Dec-200621:15
Style-jpn30.cssNot Applicable40022-Jun-200701:48
Style-kor30.cssNot Applicable37801-Dec-200621:15
Style-large30.cssNot Applicable38201-Dec-200621:15
Style30.cssNot Applicable38201-Dec-200621:15
Tf_galfind.xslNot Applicable8,63417-Nov-200620:37
Tf_messages.xslNot Applicable11,61029-Jan-200622:38
Tf_twoline.xslNot Applicable10,67726-Apr-200715:46
Util_addrval.jsNot Applicable2,11422-Jun-200716:48
Util_buttons.jsNot Applicable6,60622-Jun-200716:48
Util_calendar.jsNot Applicable4,50722-Jun-200716:48
Util_calmessaging.htcNot Applicable87622-Jun-200716:48
Util_calmessaging.jsNot Applicable10,44222-Jun-200716:48
Util_forms.jsNot Applicable26,71722-Jun-200716:48
Util_mimemsg.jsNot Applicable11,29522-Jun-200716:48
Util_owa.jsNot Applicable23,60122-Jun-200716:48
Util_recipients.jsNot Applicable18,81422-Jun-200716:48
Util_view.jsNot Applicable37,67322-Jun-200716:48
Vw_calendar.jsNot Applicable9,84022-Jun-200716:48
Vw_calendarpart.cssNot Applicable1,40122-Jun-200716:48
Vw_calendarpart.jsNot Applicable83022-Jun-200716:48
Vw_contact.jsNot Applicable2,45022-Jun-200716:48
Vw_dumpster.jsNot Applicable3,25622-Jun-200716:48
Vw_message.jsNot Applicable14,70122-Jun-200716:48
Vw_messagepart.jsNot Applicable1,95701-Dec-200621:15
Vw_navbar.jsNot Applicable46,44522-Jun-200716:48
Vw_search.jsNot Applicable10,43222-Jun-200716:48
Vw_task.jsNot Applicable7,17922-Jun-200716:48
Vw_taskpart.jsNot Applicable4,62422-Jun-200716:48


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


For more information about how to configure a disclaimer, visit the following Web site:


Article ID: 935489 - Last Review: October 8, 2011 - Revision: 5.0
  • Microsoft Exchange Server 2003 Enterprise Edition
  • Microsoft Exchange Server 2003 Standard Edition
kbautohotfix kbexchowa kbexpertiseinter kbqfe kbHotfixServer KB935489

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