Unblock Attachments in Outlook

Unblock Attachments in Outlook

If you're using Office 2002 or Office 2003 and you use Outlook as your e-mail client, you may have run into a snag. Outlook classifies many file types as security risks and blocks them. There's no option you can click or a menu you can check. You can't download the file.

There are three easy fixes. First, simply use your ISP's web mail feature to download the file - if it's still available on your server. Second, the sender can rename the file using an extension that Outlook allows, such as .txt. Then, download it and save it to your hard disk. Don't try to open it right away. Rename the file using its proper file extension, and then open it. Third, have the sender compress the file using something like PKZip - Outlook likes .zip files, for now. Of course, both you and the sender need the compression software for this to work.

Most of us need Outlook to be a tad more flexible. If you need to receive file types that Outlook blocks, and nothing I mentioned above works for you, change the Registry. Doing so can be risky, so make a backup of your Registry file on removable storage before you change anything. Personally, I've never fouled anything up changing the Registry. Just don't change anything that you're not 100% sure about and you should be fine.

Now, to unblock specific file types, do the following:

1. Launch the Registry Editor (Regedit.exe).



2. Locate the following key: HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\Security (If you're using Office 2003, the version key is 11.0).



3. Create a new string value named Level1Remove. You must use that key name.



4. Open the string value (double-click it) and enter the appropriate file extension you want to unblock. For instance, if you want Outlook to accept Access database files, you'd enter .mdb. If you want to unblock more than one file type, separate each with a semi-colon, as follows: .mdb; .xls.



5. Close the Registry.



6. If Outlook is open, close it and relaunch.

Important note

Since editing the registry is risky, be sure you have a verified backup before saving any changes.

How to backup Windows registry?

How to compact Windows Registry?

How to repair Windows Registry?

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