Project Description
GUI to enable Loopback Exemptions for Windows 8 Modern UI Apps

By default, Windows 8 Modern UI Applications are forbidden to send network traffic to the local Computer. In order to debug Apps with a tool, we need to enable Loopback capabilities for those Apps.
This tool enables the management of the Apps that can connect to the local Computer.

More information about this topic:
Revisiting Fiddler and Windows 8 Metro-style applications
Fiddler and Windows 8 Metro-style applications
How to enable loopback and troubleshoot network isolation (Windows Store apps)

Check the source code of this project on a sample usage of the Network Isolation APIs :
  • NetworkIsolationEnumAppContainers
  • NetworkIsolationFreeAppContainers
  • NetworkIsolationGetAppContainerConfig
  • NetworkIsolationSetAppContainerConfig


This tool does basically the same thing as Fiddler EnableLoopback Utility available here

Thanks to Eric Lawrence for helping with the PInvokes.

Tiago Andrade e Silva

Last edited Jan 23, 2014 at 12:53 PM by tiagonmas, version 13