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Windows Phone 7 Instant Resuming with Registry Hack

Posted by techhackz-admin Saturday, March 26, 2011


Switching between suspended apps in Windows Phone 7 can be laggy as the apps are dehydrated (status saved in internal storage) when suspended. When you go back to a suspended app the Windows Phone 7 OS has to retrieve the status from the internal storage and resume the application, this is what takes a bit of time. Jaxbot @ WindowsPhoneHacker found a registry hack which eliminates this lag.

You can see this hack in action in the YouTube video below, going back to a suspended app is snappier than usual:

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This registry hack requires a dev unlocked / jailbroken Windows Phone 7 device, to unlock your device follow our instructions @ How to Jailbreak Your Windows Phone 7 Device.

Be aware that using this registry hack will increase the memory usage of your Windows Phone 7 device and may have other side effects (battery life etc.).

Then edit the following registry key: HKLM\Software\Microsoft\TaskHost and set DehydrateOnPause to 0 (default is 3). You can edit the registry using the Registry Editor app @ Registry Editor for Windows Phone 7 Beta Testing.

You can get more information about this instant resuming Windows Phone 7 hack @

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