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

Project moved to GitHub

By default, Windows Modern UI and Universal Apps 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 Jun 6 at 4:50 PM by tiagonmas, version 15