Microsoft offers developers new Outlook tools under Apache open-source license

Microsoft offers developers new Outlook tools under Apache open-source license

Summary: Last October, in the name of interoperability, Microsoft announced plans to make the Outlook Personal Folders .PST file format freely and safely licensable.On May 24, Microsoft took a step along that path by making available for download two .PST interoperability tools.

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Last October, in the name of interoperability, Microsoft announced plans to make the Outlook Personal Folders .PST file format freely and safely licensable.

On May 24, Microsoft took a step along that path by making available for download two .PST interoperability tools. The pair -- a .PST Data Structure View Tool and a .PST File Format Software Development Kit (along with the related technical documentation) --are available under the Apache open-source license.

Here's Microsoft's description of the new tools:

"The .pst Data Structure View Tool is a graphical browser of internal data structures for .pst files that enables a developer to better understand .pst file content. The .pst File Format SDK is a cross-platform library that allows developers to read data stored in .pst files and develop applications accessing the data. In the near future, the capability to write data to .pst files will be added to the SDK."

Microsoft officials denied last year that they were opening up the .PST format due to any influence from or pressure by European antitrust authorities.

Topics: Open Source, Microsoft, Software Development

About

Mary Jo has covered the tech industry for 30 years for a variety of publications and Web sites, and is a frequent guest on radio, TV and podcasts, speaking about all things Microsoft-related. She is the author of Microsoft 2.0: How Microsoft plans to stay relevant in the post-Gates era (John Wiley & Sons, 2008).

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5 comments
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  • RE: Microsoft offers developers new Outlook tools under Apache open-source license

    As soon as I started reading this blog my first thought was that the EU anti-trust situation was an influence. The shock to MS of actually being told they can't do what the hell they like (and the colossal fine) has maybe had a beneficial effect outside of the EU. Lets hope so.
    AndyPagin
    • An as we've seen

      MS's documentation is so bad and incomplete that they have to release source.
      Richard Flude
    • Who wants it?

      @AndyPagin <br><br>.PST is an old <a href="http://www.trsohbet.com">sohbet</a> technology, I don't think anybody is really going to want to use <a href="http://www.trsohbet.com">chat</a>. What can it provide that's better than what is currently available? I've dealt with .PST <a href="http://www.trsohbet.com/portal/">portal</a> files in the past and I prefer NOT to use them. Why? Because it's a single source of <a href="http://video.trsohbet.com">izlesene</a> failure (you get a corrupted .PST file and instantly all of your email is at risk), and also that it causes everything to be stored in one huge file that grows and grows, and makes it a pain to <a href="http://www.forumuz.net">forum</a> manage. For instance for most backups, it has to copy the entire file over and over. Whereas other software like Mozilla Thunderbird (and others), store email in multiple files which is a much better design.
      cstrathmore
  • Who wants it?

    .PST is an old technology, I don't think anybody is really going to want to use it. What can it provide that's better than what is currently available? I've dealt with .PST files in the past and I prefer NOT to use them. Why? Because it's a single source of failure (you get a corrupted .PST file and instantly all of your email is at risk), and also that it causes everything to be stored in one huge file that grows and grows, and makes it a pain to manage. For instance for most backups, it has to copy the entire file over and over. Whereas other software like Mozilla Thunderbird (and others), store email in multiple files which is a much better design.
    Chris_Clay
  • RE: Microsoft offers developers new Outlook tools under Apache open-source license

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