

For example if you download a PDF file in Internet Explorer the PDF reader will download it to its own isolated storage and then the PDF reader will launch and show the file for the user.Īs far as I know, external developers can not associate their own programs with other programs in this way. Such as the browser and the email reader that can make other applications save a file of an certain type into its own isolated storage and show it for the user. Some applications have associations with other applications.

So no other application can see or use other applications files. Every application can only read and write to its own isolated storage space. This is a virtual storage space created on the internal storage by each application that needs to save files onto the phone. Windows Phone uses something called "isolated storage".

Since Windows Phone 8, developers can register a handler for file extensions.
