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Windows Me - Unhide the hidden attachments in Outlook

November 28, 2013
Updated: April 14, 2022
Quick overview:

Outlook XP, which is part of the Office XP package, blocks certain e-mail attachments that may contain viruses. Unfortunately, this feature often proves to be a nuisance when you receive files from colleagues that are guaranteed to be virus-free.

Below you will find a list of all file extensions that have been blocked. Until now, you had to use tricks to get around this, for example by compressing the file as a ZIP, but this is not a compromise in the long term. To completely override this blockade, proceed as follows.

1. Click here to download a small registration file. Make a note of the path, open it and double-click on the file Outlook98ME.reg.

                       

2. After confirming twice, the values are entered in the Windows registry. Outlook now allows all attachments.

Manually block certain attachments
However, if you would like to block some attachments, you can do so from now on:

1. In the start menu, open Execute and enter in the command line regedit followed by Enter. This reveals the Windows Registry Editorwhich can be used in exactly the same way as Explorer.

2. Now scroll through the keys (folders) HKEY_CURRENT_USER\S oftware\Microsoft\Office\10.0\Outlook\Security and double-click on the value in the right-hand pane Level1Remove.

3. In the small window that appears there is a line that contains all authorized attachments.

4. To block a particular file type, simply select and delete it. The deleted file will then be blocked.

Here is the list with all File typeswhich are blocked:

File typeDescription
ADEMicrosoft Access project extension
ADPMicrosoft Access Project
BASVisual Basic class module
BATRod processing file
CHMCompiled HTML help file
CMDMicrosoft Windows NT command script
COMMicrosoft MS DOS application
CPLSystem control option
CRTSecurity certificate
EXEProgram, application
HLPHelp file
HTAHTML program
INFInstallation information
INSInternet name service
ISPInternet provider setting
JSJScript file
JSEEncrypted JSCRIPT file
LNKLink
MDAMicrosoft Addecc-Add-In
MDBMicrosoft Access database
MDEMicrosoft Access MDE database
MDZMicrosoft Access Assistant
MSCMicrosoft console
MSI Windows Installer Package
MSPWindows Installer Patch
MSTVisual Test source files
PCDPhotoCD-IMAGE
PIFLink with MS DOS program
REGRegistration entries
SCRScreensaver
SCTWindows Script Component
SHSShell Scrap object
URLInternet link
VBVisual Basic file
VBEEncrypted VB file
VBSVisual Basic Script
WSCWindows Script Component
WSFWindows Script file

NOTE FOR NEW PUBLICATION: This article was produced by Sandro Villinger and comes from the Windows tweaks archive, which has been built up since the late 1990s.

Founded Windows Tweaks as a teenager in the 90s. His helpful PC tricks made it Germany's most visited Windows site (at the time Sandro looked like this). He then went on to write elsewhere, for example for PC-Praxis, Computer Bild and PCWorld in the USA. Microsoft also poached him from us. Now Sandro is back, finally sharing his tweaks here again. For a stress-free digital everyday life. You can reach Sandro via e-mail.

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