LKBEN10702: Security Setting for filetype - attachments under MS Outlook

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LKB | Created: 02/04/2020 | Version: 0 | Language: EN | Rating: 0 | Outdated: False | Marked for deletion: False

Author: Wim Peeters - Keskon GmbH & Co. KG


Certain filetypes cannot be started from without MS Outlook


This is by design (security feature)


This MS security feature was implemented to protect you from naively or accidentally double-clicking an attachment of uncertain origin.

What if know it's safe and you just want this thing to work (and you made sure it's safe...)?

Under the following key are exceptions defined, Outlook let's you to open without asking:

Registry Location:
(11.0: Office 2003, 10.0: Office XP)

Key (REG_SZ):

Value (just make the exceptions, you really want to. Single values must be seperated by semi-colon):
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

About the Author

Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience, including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform.


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