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Disallow Third Party Application Downloads IT policy rule


This rule specifies whether a user can install an application that the Research In Motion® signing authority system has not digitally signed on a BlackBerry® device.

Default values

The default value in the Medium password security (disallow application downloads) and the Advanced security (disallow application downloads) IT policies is True.

The default value in all other preconfigured IT policies is False.


This rule prevents a user from installing an unsigned third-party application that is sent over a wireless network or when a BlackBerry device is connected to the BlackBerry® Desktop Manager or application loader tool. This rule applies to any unsigned applications that the BlackBerry® Enterprise Server or another party send to a BlackBerry device.

If you change the value to True, this rule does not remove any existing third-party applications from a BlackBerry device.

Minimum requirements

  • Java® based BlackBerry device
  • BlackBerry® Application Suite version 1.0
  • BlackBerry® Connect™ versions 2.1, 4.0
  • BlackBerry® Device Software version 3.6
  • BlackBerry® Enterprise Server for IBM® Lotus® Domino® and BlackBerry® Enterprise Server for Novell® GroupWise® version 4.0
  • BlackBerry® Enterprise Server for Microsoft® Exchange version 3.6


The BlackBerry Enterprise Server for Novell GroupWise supports this rule in BlackBerry Device Software version 4.0 or later.


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