Sharing data between users of a Universal App

• Users of a Universal App can share data between them on the same physical machine.

• With a proper synchronization mechanism, this method could also be used to communicate with a regular desktop app.

• This feature is disabled by default and ApplicationData.Current.SharedLocalFolder will always return "null".

   

  How to use:

  • Enable the policy e.g. by creating a REG_DWORD value called AllowSharedLocalAppData under HKLM\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\AppModel\StateManager and set it to 1.
  • You can now run code similar to the following to access a shared file:
  • This code will create a file called Test.txt under C:\ProgramData\Microsoft\Windows\AppRepository\Families\<PACKAGE NAME>\SharedLocal\ .

• [csharp]

• Storage folder = ApplicationData.Current.SharedLocalFolder;

• StorageFile file = await folder.CreateFileAsync("Test.txt");

• await FileIO.WriteTextAsync(file, "Hello world!");

• [/csharp]