Microsoft Knowledge Base Email Alertz
All KB/RSS Links  |  Hot Kb!  |  New Kb!  |  Scott Cate  |  FAQ / KB  |  Web Hosting  |  Unsubscribe  

Attachments that are allowed by Outlook 2007 may be blocked by Windows SharePoint Services 3.0

Search KbAlertz

Advanced Search

Receive Microsoft Knowledge Base articles by E-Mail?

Every night we scan the Microsoft Knowledge Base. If technologies you're interested in are updated, we'll send you an e-mail. You only get one e-mail a day, and only when new articles are added.
Click here to create a
FREE account
Already have an account?
[Click here to Login]











Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
©2005-©2007 Microsoft Corporation. All rights reserved. Terms of Use | Trademarks
Article ID: 920785 - Last Review: November 20, 2007 - Revision: 4.0

Attachments that are allowed by Outlook 2007 may be blocked by Windows SharePoint Services 3.0

View products that this article applies to.

On This Page

SYMPTOMS

When you connect a Microsoft Windows SharePoint Services 3.0 site to Microsoft Office Outlook 2007, attachments that are allowed by Outlook 2007 may be blocked by the Windows SharePoint Services site. Additionally, attachments that are allowed by Windows SharePoint Services 3.0 may be blocked by Outlook 2007.

When this issue occurs, Outlook 2007 users may receive any of the following messages:
Outlook blocked access to the following potentially unsafe attachments: FileName
The file cannot be previewed. Try opening the file in the program in which it was created.
This item contains attachments that are potentially unsafe. Recipients using Microsoft Outlook may not be able to open these attachments.
SharePoint users who are not using Outlook 2007 may receive the following message:
The file you are attempting to save or retrieve has been blocked from this Web site by the server administrators.
Back to the top

CAUSE

Windows SharePoint Services 3.0 enables administrators to block certain types of attachments. Policies that control which file types are allowed as attachments are not synchronized between Outlook 2007 and Windows SharePoint Services. Therefore, Windows SharePoint Services may not block the same attachments that Outlook 2007 blocks.
Back to the top

MORE INFORMATION

By default, Outlook 2007 and Windows SharePoint Services 3.0 block the following file types.
Back to the top

Outlook 2007

  • .ade
  • .adp
  • .app
  • .asp
  • .bas
  • .bat
  • .cer
  • .chm
  • .cmd
  • .com
  • .cpl
  • .crt
  • .csh
  • .der
  • .exe
  • .fxp
  • .hlp
  • .hta
  • .inf
  • .ins
  • .isp
  • .its
  • .js
  • .jse
  • .ksh
  • .lnk
  • .mad
  • .maf
  • .mag
  • .mam
  • .maq
  • .mar
  • .mas
  • .mat
  • .mau
  • .mav
  • .maw
  • .mda
  • .mdb
  • .mde
  • .mdt
  • .mdw
  • .mdz
  • .msc
  • .msh
  • .msh1
  • .msh2
  • .msh1xml
  • .msh2xml
  • .mshxml
  • .msi
  • .msp
  • .mst
  • .ops
  • .pcd
  • .pif
  • .plg
  • .prf
  • .prg
  • .pst
  • .reg
  • .scf
  • .scr
  • .sct
  • .shb
  • .shs
  • .tmp
  • .url
  • .vb
  • .vbe
  • .vbs
  • .vsmacros
  • .vsw
  • .ws
  • .wsc
  • .wsf
  • .wsh
Back to the top

Windows SharePoint Services 3.0

  • .ade
  • .adp
  • .app
  • .asa
  • .ashx
  • .asmx
  • .asp
  • .bas
  • .bat
  • .cdx
  • .cer
  • .chm
  • .class
  • .cmd
  • .com
  • .config
  • .cpl
  • .crt
  • .csh
  • .dll
  • .exe
  • .fxp
  • .hlp
  • .hta
  • .htr
  • .htw
  • .ida
  • .idc
  • .idq
  • .ins
  • .isp
  • .its
  • .jse
  • .ksh
  • .lnk
  • .mad
  • .maf
  • .mag
  • .mam
  • .maq
  • .mar
  • .mas
  • .mat
  • .mau
  • .mav
  • .maw
  • .mda
  • .mdb
  • .mde
  • .mdt
  • .mdw
  • .mdz
  • .msc
  • .msh
  • .msh1
  • .msh2
  • .msh1xml
  • .msh2xml
  • .mshxml
  • .msi
  • .msp
  • .mst
  • .ops
  • .pcd
  • .pif
  • .prf
  • .prg
  • .printer
  • .pst
  • .reg
  • .rem
  • .scf
  • .scr
  • .sct
  • .shb
  • .shs
  • .shtm
  • .shtml
  • .soap
  • .stm
  • .url
  • .vb
  • .vbe
  • .vbs
  • .ws
  • .wsc
  • .wsf
  • .wsh
Windows SharePoint Services 3.0 administrators can modify which file types are blocked as attachments. To modify the file types, follow these steps.

Note This setting applies to all SharePoint Web applications that run on the Windows SharePoint Services 3.0 server.
  1. On the Windows SharePoint Services 3.0 server, click Start, point to Administrative Tools, and then click SharePoint 3.0 Central Administration.
  2. Click the Operations tab.
  3. Under Security Configuration, click Blocked file types.
  4. On the Blocked File Types page, click the Web application that you want to configure in the Web Application box.
  5. To block or allow a file type, perform one of the following actions:
    • To block a type of file, type the file name extension on a new blank line in the list of file name extensions.
    • To allow a blocked file type, select the file type, and then press DELETE.
  6. When you are finished blocking or allowing file types, click OK.
Back to the top
APPLIES TO
  • Microsoft Office Outlook 2007
  • Microsoft Windows SharePoint Services 3.0
  • Microsoft Office SharePoint Server 2007
Back to the top
Keywords: 
kbtshoot kbprb KB920785
Back to the top
        

Community Feedback System

Very often, it takes hours to solve a problem. Very often, you've looked high and low, and have tried a lot of solutions. When you finally found it, chances are, it was because someone else helped you. Here's your chance to give back. Use our community feedback tool to let others know what worked for you and what didn't.

Please also understand that the community feedback system is not warranted to be correct, it's simply a system that we've built to let people try and help each other. If something in a feedback response doesn't make sense to you, or you're not comfortable making changes that the feedback talks about (like registry edits), please consult a professional.

Thank you for using kbAlertz.com Feedback System.

-- Scott Cate

Copyright © 2002-2007 KBALERTZ.COM.  All Rights Reserved. Terms / Privacy. Discount ASP.NET Hosting