ECF File Documentation

Overview

Feature Value
File Extension .ecf
Full Name Exchange Client Extension File
Developer Microsoft Corporation
File Category Add-in File
Primary Association Microsoft Outlook
MIME Type application/octet-stream
File Type Binary
Usage Extends functionality of Outlook
Compatibility Microsoft Outlook versions supporting Exchange Client Extensions (ECE)
Encryption Not inherently encrypted
Editable Not directly editable
Open Standard No
Platform Windows
Signature None specific
Requires Outlook or compatible email client with Exchange support
File System Location Varies by installation
Registration Within Outlook
Dependencies Requires specific Outlook and Exchange Server versions
Update Mechanism Through application updates
Customizability Through development of additional components
File Naming Convention Usually named after the add-in functionality
Typical Location User-specific or global Outlook add-in folders