How to unlock attachment restriction in Ms Outlook
Some of you might feel very frustrated whenever you can’t open your attachment in Microsoft Outlook. Microsoft Outlook XP detect every attachment and lock the attachment if it feel is unsafe. (I’m not really sure what’s the standard they use to judge if attachment is safe or not). I only know they lock my attachment most of the time.
To unlock the attachment restriction in Ms Outlook, just follow the steps below:-
- Start => Run => Enter regedit
- Look for HKEY_CURRENT_USER\ Software\ Microsoft\ Office\ 10.0\ Outlook\ Security
- Create a new String value Level1Remove (modify if exists) and add the extension that you would like to allow for download (seperated by comma) ex: exe;jpg;gif;png
Note: These are the list of files that is normally being lock by Ms Outlook when received as e-mail attachments: “ade, adp, asx, bas, bat, chm, cmd, com, cpl, crt, exe, hlp, hta, inf, ins, isp, js, jse, lnk, mda, mdb, mde, mdz, msc, msi, msp, mst, pcd, pif, prf, reg, scf, scr, sct, shb, shs, url, vb, vbe, vbs, wsc, wsf, wsh”
Important Note: This tutorial teach you how to modify the ms windows registry. Modifying the registry can cause serious problems to your computer. Make sure to back up the registry before you modify it. If problem happen you need to know how to restore the registry if a problem occurs. Use this tutorial at your own risk.
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Posted at September 6th, 2006 by chuaIf you think this article helps you to solve your problem and clear your headache, feel free to buy me a drink :)









October 10th, 2006 at 10:29 am
Thanks. It really helps.
March 11th, 2007 at 4:25 am
Thank you so much. I sent myself a Access database from work to work on it at home. Of course, Outlook blocked it. How frustrating that Microsoft doesn’t trust people to decide for themselves what files they want or don’t want! I just wish I found the article a bit sooner so I could have saved myself a lot of frustration. Okay, time to work on that database now… thanks again.
June 14th, 2007 at 10:23 pm
Thanks. Now i have no issues with the attachments.