Last summer, Microsoft announced that it planned to allow developers to license the Outlook Personal Folders .pst file format freely. Now it has begun that process with the release of two open-source tools: the .pst Data Structure View Tool and the .pst File Format SDK.
The .pst Data Structure View Tool provides a graphical browser of Outlook file content so that developers can better understand it. The SDK allows application developers to actually read and use the data in their own applications. Microsoft promises that the ability to write data to .pst files will be added to the SDK in the future.
