Microsoft KB Archive/833809

= An update is available for Exchange 2000 OWA to restrict the opening of certain attachment file types in Internet Explorer 5.x =

Article ID: 833809

Article Last Modified on 10/26/2006

-

APPLIES TO


 * Microsoft Exchange 2000 Server Standard Edition
 * Microsoft Exchange 2000 Enterprise Server

-





SYMPTOMS
When you open an attachment in Microsoft Exchange 2000 Server Outlook Web Access (OWA), versions of Microsoft Internet Explorer that are later than 5.0 and earlier than 5.5 may open the attachment in the browser, depending on the file type. This may not be the expected behavior for some file types that may be considered unsafe.



Hotfix information
To resolve this problem, obtain the August 2004 Exchange 2000 Server Post-Service Pack 3 update rollup.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

870540 Availability of the August 2004 Exchange 2000 Server post-Service Pack 3 update rollup

Prerequisites
Because of file dependencies, this update requires Microsoft Exchange 2000 Server Service Pack 3 (SP3). For more information, click the following article number to view the article in the Microsoft Knowledge Base:

301378 How to obtain the latest Exchange 2000 Server service pack

Restart requirement
You do not have to restart your computer after you apply this hotfix. However, all the following services are automatically stopped and then restarted when you apply this hotfix:
 * Microsoft Exchange MTA Stacks
 * Microsoft Exchange Information Store
 * Microsoft Exchange System Attendant
 * Intersite Messaging
 * License Logging
 * World Wide Web Publishing Service
 * Simple Mail Transfer Protocol (SMTP)
 * Microsoft Exchange Routing Engine
 * Microsoft Exchange POP3
 * Network News Transfer Protocol (NNTP)
 * Microsoft Exchange IMAP4
 * IIS Admin Service
 * Microsoft Exchange Management
 * Windows Management Instrumentation
 * Microsoft Search

Hotfix replacement information
This hotfix does not replace any other hotfixes.

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.   Date         Time   Version            Size    File name --  12-Jun-2004  04:29  6.0.6603.0        602,112  Abv_dg.dll 12-Jun-2004 04:29  6.0.6603.0        757,760  Adc.exe 12-Jun-2004 04:54  6.0.6603.0      4,370,432  Adcadmin.dll 12-Jun-2004 04:25  6.0.6603.0        593,920  Addxa.dll 12-Jun-2004 04:44  6.0.6603.0         49,152  Archivesink.dll 12-Jun-2004 04:58  6.0.6603.0        221,184  Calconmsg.dll 12-Jun-2004 04:14  6.0.6603.0        585,728  Ccmc.exe 12-Jun-2004 04:56  6.0.6603.0         69,632  Ccmproxy.dll 12-Jun-2004 04:20  6.0.6603.0        716,800  Cdo.dll 12-Jun-2004 05:35  6.0.6603.0      3,919,872  Cdoex.dll 12-Jun-2004 04:56  6.0.6603.0      2,109,440  Cdoexm.dll 12-Jun-2004 04:11  6.0.6603.0        561,152  Cdohtml.dll 10-Jun-2004 18:37                     12,720  Ctrl_calendarview20.htc 10-Jun-2004 18:37                     91,631  Ctrl_calendarview20.js   10-Jun-2004  18:37                      8,882  Ctrl_reminder20.htc 10-Jun-2004 18:37                     71,102  Ctrl_view20.js   12-Jun-2004  04:56  6.0.6603.0        794,624  Dapi.dll 12-Jun-2004 05:27  6.0.6603.0        856,064  Davex.dll 12-Jun-2004 05:27  6.0.6603.0         53,248  Davexpc.dll 12-Jun-2004 04:22  6.0.6603.0         28,672  Dramapi.dll 12-Jun-2004 05:22  6.0.6603.0        131,072  Drviis.dll 12-Jun-2004 04:33  6.0.6603.0        151,552  Ds2mb.dll 12-Jun-2004 04:56  6.0.6603.0        114,688  Ds2mbmsg.dll 12-Jun-2004 05:23  6.0.6603.0        577,536  Dsaccess.dll 12-Jun-2004 04:35  6.0.6603.0        184,320  Dscmsg.dll 12-Jun-2004 04:26  6.0.6603.0         69,632  Dsproxy.dll 12-Jun-2004 04:30  6.0.6603.0         65,536  Dxanotes.dll 12-Jun-2004 02:45                      2,670  Edkguid.h   12-Jun-2004  03:04                     18,980  Edkguid.lib 12-Jun-2004 02:45                    105,318  Edkmdb.h   12-Jun-2004  04:12  6.0.6603.0         49,152  Embx.dll 12-Jun-2004 04:29  6.0.6603.0        167,936  Emsabp32.dll 12-Jun-2004 04:37  6.0.6603.0        962,560  Emsmdb32.dll 12-Jun-2004 04:23  6.0.6603.0      1,798,144  Emsmta.exe 12-Jun-2004 05:24  6.0.6603.0        733,184  Epoxy.dll 12-Jun-2004 04:12  6.0.6603.0         16,384  Escprint.dll 12-Jun-2004 05:25  6.0.6603.0      2,179,072  Ese.dll 12-Jun-2004 05:25  6.0.6603.0        266,240  Eseback2.dll 12-Jun-2004 05:25  6.0.6603.0        217,088  Esebcli2.dll 12-Jun-2004 05:25  6.0.6603.0         40,960  Eseperf.dll 10-Jun-2004 18:42                      6,991  Eseperf.hxx 12-Jun-2004 05:25                    391,634  Eseperf.ini 12-Jun-2004 04:55  6.0.6603.0      8,470,528  Exadmin.dll 12-Jun-2004 05:35  6.0.6603.0      3,596,288  Excdo.dll 12-Jun-2004 05:23  6.0.6603.0        167,936  Exchmem.dll 12-Jun-2004 04:55  6.0.6603.0      3,850,240  Excluadm.dll 12-Jun-2004 04:39  6.0.6603.0      3,354,624  Exconmsg.dll 12-Jun-2004 02:45  6.0.6603.0        210,688  Exifs.sys 12-Jun-2004 02:45  6.0.6603.0          8,192  Exifsmsg.dll 12-Jun-2004 05:22  6.0.6603.0         94,208  Eximap4.dll 12-Jun-2004 04:56  6.0.6603.0      1,867,776  Exmgmt.exe 12-Jun-2004 05:23  6.0.6603.0        262,144  Exmime.dll 12-Jun-2004 04:11  6.0.6603.0        176,128  Exnntp.dll 12-Jun-2004 05:27  6.0.6603.0        143,360  Exodbesh.dll 12-Jun-2004 05:27  6.0.6603.0         57,344  Exodbpc.dll 12-Jun-2004 05:27  6.0.6603.0        200,704  Exodbprx.dll 12-Jun-2004 05:27  6.0.6603.0      2,179,072  Exoledb.dll 12-Jun-2004 05:20  6.0.6603.0         81,920  Exosal.dll 12-Jun-2004 04:24  6.0.6603.0         28,672  Expkm.dll 12-Jun-2004 05:22  6.0.6603.0         32,768  Expop3.dll 12-Jun-2004 05:23  6.0.6603.0         32,768  Exproto.dll 12-Jun-2004 05:27  6.0.6603.0        307,200  Exprox.dll 12-Jun-2004 05:20  6.0.6603.0        122,880  Exps.dll 12-Jun-2004 04:17  6.0.6603.0        139,264  Exres.dll 12-Jun-2004 04:36  6.0.6603.0        143,360  Exschema.exe 12-Jun-2004 05:27  6.0.6603.0        331,776  Exsmtp.dll 12-Jun-2004 04:37  6.0.6603.0        720,896  Exsp.dll 12-Jun-2004 04:38  6.0.6603.0        675,840  Exwform.dll 12-Jun-2004 04:12  6.0.6603.0        180,224  Exwin32.dll 12-Jun-2004 04:56  6.0.6603.0      1,347,584  Exwmi.dll 12-Jun-2004 04:37  6.0.6603.0         40,960  Febecfg.dll 10-Jun-2004 18:37                      5,596  Frm_attach20.js   10-Jun-2004  18:37                     32,766  Frm_composeappt20.js   10-Jun-2004  18:37                     28,461  Frm_composecontact20.js   10-Jun-2004  18:37                      8,985  Frm_readnote20.js   12-Jun-2004  04:33  6.0.6603.0         40,960  Gw2mex.exe 12-Jun-2004 04:32  6.0.6603.0         77,824  Gwart.dll 12-Jun-2004 04:32  6.0.6603.0        110,592  Gwhc.dll 12-Jun-2004 04:43  6.0.6603.0         24,576  Gwisecalmsg.dll 12-Jun-2004 05:22  6.0.6603.0         32,768  Iisif.dll 12-Jun-2004 05:23  6.0.6603.0        135,168  Iisproto.dll 12-Jun-2004 05:23  6.0.6603.0         61,440  Imap4be.dll 12-Jun-2004 04:41  6.0.6603.0        319,488  Imap4evt.dll 12-Jun-2004 04:38  6.0.6603.0        126,976  Imap4fe.dll 12-Jun-2004 05:22  6.0.6603.0        126,976  Imap4svc.dll 12-Jun-2004 04:37  6.0.6603.0        114,688  Imapadm.dll 12-Jun-2004 04:37  6.0.6603.0         20,480  Imapapi.dll 12-Jun-2004 04:56  6.0.6603.0        479,232  Imapmgr.dll 12-Jun-2004 04:56  6.0.6603.0         73,728  Inproxy.dll 12-Jun-2004 05:23  6.0.6603.0         40,960  Jcb.dll 12-Jun-2004 04:22  6.0.6603.0         36,864  Kmsbackup.dll 12-Jun-2004 04:22  6.0.6603.0        204,800  Kmserver.exe 12-Jun-2004 04:39  6.0.6603.0         36,864  Letadata.dll 12-Jun-2004 04:35  6.0.6603.0        868,352  Lsadmin.exe 12-Jun-2004 04:27  6.0.6603.0        163,840  Lscms.dll 12-Jun-2004 04:41  6.0.6603.0        344,064  Lscps.dll 12-Jun-2004 04:27  6.0.6603.0         73,728  Lslde.dll 12-Jun-2004 04:27  6.0.6603.0         28,672  Lsldew.dll 12-Jun-2004 04:27  6.0.6603.0        139,264  Lsmexhc.dll 12-Jun-2004 04:27  6.0.6603.0        237,568  Lsmexif.dll 12-Jun-2004 04:31  6.0.6603.0         20,480  Lsmexin.exe 12-Jun-2004 04:31  6.0.6603.0         40,960  Lsmexnts.exe 12-Jun-2004 04:31  6.0.6603.0         20,480  Lsmexout.exe 12-Jun-2004 04:27  6.0.6603.0        118,784  Lsmmdodb.dll 12-Jun-2004 04:27  6.0.6603.0        200,704  Lsntshc.dll 12-Jun-2004 04:32  6.0.6603.0         49,152  Lsntsmex.exe 12-Jun-2004 04:32  6.0.6603.0         49,152  Lsxfm.dll 12-Jun-2004 04:56  6.0.6603.0      2,973,696  Mad.exe 12-Jun-2004 05:35  6.0.6603.0        524,288  Madfb.dll 12-Jun-2004 04:56  6.0.6603.0        811,008  Madmsg.dll 12-Jun-2004 04:55  6.0.6603.0      4,698,112  Maildsmx.dll 12-Jun-2004 04:17  6.0.6603.0        745,472  Mapi32.dll 12-Jun-2004 04:43  6.0.6603.0         24,576  Mapical.dll 12-Jun-2004 04:12  6.0.6603.0         49,152  Mdbevent.dll 12-Jun-2004 04:31  6.0.6603.0      2,293,760  Mdbmsg.dll 12-Jun-2004 04:14  6.0.6603.0         32,768  Mdbrole.dll 12-Jun-2004 04:37  6.0.6603.0        917,504  Mdbsz.dll 12-Jun-2004 05:23  6.0.6603.0         24,576  Mdbtask.dll 12-Jun-2004 04:32  6.0.6603.0         32,768  Mex2gw.exe 12-Jun-2004 04:13  6.0.6603.0      2,551,808  Mlmig32.dll 12-Jun-2004 04:11  6.0.6603.0         69,632  Mlmignts.dll 12-Jun-2004 04:19  6.0.6603.0        245,760  Mmfmig32.dll 12-Jun-2004 04:29  6.0.6603.0        856,064  Msallog.dll 12-Jun-2004 04:35  6.0.6603.0         81,920  Msgtrack.dll 12-Jun-2004 04:39  6.0.6603.0      3,092,480  Mtamsg.dll 12-Jun-2004 04:39  6.0.6603.0         32,768  Mtaperf.dll 10-Jun-2004 18:58                      5,621  Mtaperf.h   12-Jun-2004  04:39                     96,078  Mtaperf.ini 12-Jun-2004 04:34  6.0.6603.0         73,728  Mtaroute.dll 12-Jun-2004 04:11  6.0.6603.0        151,552  Nntpex.dll 12-Jun-2004 04:56  6.0.6603.0      1,105,920  Nntpmgr.dll 12-Jun-2004 04:26  6.0.6603.0         53,248  Ntspxgen.dll 12-Jun-2004 04:22  6.0.6603.0         57,344  Oabgen.dll 10-Jun-2004 18:50  11.0.5704.14      125,136  Offfilt.dll 12-Jun-2004 04:56  6.0.6603.0         77,824  Pcproxy.dll 12-Jun-2004 05:19  6.0.6603.0         94,208  Peexch50.dll 12-Jun-2004 05:20  6.0.6603.0        413,696  Phatcat.dll 12-Jun-2004 05:27  6.0.6603.0        507,904  Phatq.dll 12-Jun-2004 05:27  6.0.6603.0        229,376  Phatqadm.dll 12-Jun-2004 04:37  6.0.6603.0        114,688  Pop3adm.dll 12-Jun-2004 04:37  6.0.6603.0         20,480  Pop3api.dll 12-Jun-2004 05:22  6.0.6603.0         36,864  Pop3be.dll 12-Jun-2004 04:41  6.0.6603.0        303,104  Pop3evt.dll 12-Jun-2004 04:39  6.0.6603.0         24,576  Pop3fe.dll 12-Jun-2004 04:56  6.0.6603.0        892,928  Pop3mgr.dll 12-Jun-2004 05:20  6.0.6603.0         73,728  Pop3svc.dll 12-Jun-2004 04:41  6.0.6603.0        163,840  Protomsg.dll 12-Jun-2004 05:23  6.0.6603.0        532,480  Reapi.dll 12-Jun-2004 05:27  6.0.6603.0        311,296  Resvc.dll 12-Jun-2004 04:56  6.0.6603.0        708,608  Smtpmgr.dll 12-Jun-2004 04:22  6.0.6603.0         86,016  Srscheck.dll 12-Jun-2004 04:25  6.0.6603.0        401,408  Srsmain.exe 12-Jun-2004 04:29  6.0.6603.0      1,069,056  Srsmsg.dll 12-Jun-2004 05:22  6.0.6603.0      4,673,536  Store.exe 12-Jun-2004 04:10  6.0.6603.0         65,536  Tokenm.dll 12-Jun-2004 05:27  6.0.6603.0        421,888  Tranmsg.dll 12-Jun-2004 04:35  6.0.6603.0         73,728  Turflist.dll 10-Jun-2004 18:38                     22,121  Util_owa20.js   10-Jun-2004  18:38                     12,696  Util_view20.js   12-Jun-2004  04:38  6.0.6603.0      3,735,552  Wmtemplates.dll 12-Jun-2004 04:11  6.0.6603.0         40,960  X400omv1.dll 12-Jun-2004 04:56  6.0.6603.0         94,208  X400prox.dll



STATUS
Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server.



MORE INFORMATION
Outlook Web Access (OWA) in Exchange 2000 checks a known list of accepted content types for the client. This list of accepted content types is found in the following registry key:

The default string value for this registry key is typically set to the following:

application/fractals,application/hta,application/mac-binhex40,application/pkcs10,application/pkcs7-mime,application/pkix-cert,application/pkix-crl,application/postscript,application/vnd.ms-pki.certstore,application/vnd.ms-pki.pko,application/vnd.ms-pki.seccat,application/vnd.ms-pki.stl,application/x-cdf,application/x-gzip,application/x-internet-signup,application/x-latex,application/x-mix-transfer,application/xml,application/x-mplayer2,application/x-msdownload,application/x-pkcs12,application/x-pkcs7-certificates,application/x-stuffit,application/x-tar,application/x-troff-man,application/x-zip-compressed,audio/aiff,audio/basic,audio/mid,audio/midi,audio/mpeg,audio/wav,audio/x-aiff,audio/x-background,audio/x-midi,audio/x-mpegurl,audio/x-wav,image/bmp,image/gif,image/jpeg,image/pjpeg,image/png,image/tiff,image/xbm,image/x-icon,image/x-jg,image/x-png,image/x-wmf,image/x-xbitmap,message/rfc822,text/css,text/h323,text/html,text/iuls,text/plain,text/scriptlet,text/webviewhtm,text/x-component,text/xml,text/x-scriptlet,text/x-vcard,video/avi,video/mpeg,video/msvideo,video/x-mpeg,video/x-mpeg2a,video/x-ms-asf,video/x-ms-asf-plugin,video/x-msvideo

When you try to open a file attachment in OWA, the attachment type is checked against the registry key KnownContentTypes. If the attachment type is not in the known list, OWA sends back a content type of application/octet-stream. If the content type application/octet-stream is unknown, Internet Explorer does not open the attachment. Instead, Internet Explorer can either display the attachment as raw text or save the attachment to disk.

For more information about the terminology that is used to describe Microsoft product updates, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

For more information about the naming schema for Exchange Server updates, click the following article number to view the article in the Microsoft Knowledge Base:

817903 New naming schema for Exchange Server software update packages

Keywords: kbhotfixserver kbqfe kbexchange2000presp4julybarfix kbqfe kbfix kbexchange2000presp4fix kbbug KB833809

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.