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Script Debugger 4.0.6b3

I am preparing yet another Script Debugger 4 maintenance release. This release addresses some annoying issues that have surfaced since the 4.0.5 release. In particular, this release addresses a series of crashing bugs that have been frustratingly difficult to trace.

You can download the software here:

Universal build requires Mac OS X 10.4 or later (13.1MB)

If you are running 10.3 (Panther), you need to use this version instead (10MB)

Changes in 4.0.6b3:

13470 – modified Script Debugger’s software registration logic to allow for installations in labs where multiple machines share a common startup (server) disk.

13485 – solved an extremely intermittent bug that caused Script Debugger to crash following a Check Syntax operation.

13513 – backported FaceSpan 5 code that supports the <class-extension> and <contents> sdef elements. This makes dictionary presentation more faithful to the application developer’s intentions.

13514 – Script Debugger no longer miss-recognizes properties in the Multi-Ad Creator application object as synonyms.

Release notes for previous builds


  1. Daniel Lord Daniel Lord

    Any plans for support for PyOSA? Script Editor recognizes teh PyOSA component, but the latest Script Debugger 4.0.6b3 does not.

    Hi all,

    Announcing the first release of PyOSA, a new OSA language component for Python. PyOSA allows you to write Python scripts in Script Editor and attach them to OSA-enabled applications such as Mail (Mail Rules), iTunes (Scripts menu) and System Events (Folder Actions). PyOSA is very much a work-in-progress at this point, but it’s already sufficiently advanced to allow both experimental and real-world use (caveat a few bugs and limitations). Comments, criticisms and suggestions for improvements are very welcome.

    Also released is Appscript Installer 1.5.1, containing binary installers for appscript 0.17.2. This update fixes several minor bugs and is recommended for all Appscript Installer 1.5/appscript 0.17.0 users.

    PyOSA and Appscript Installer are available for download at:



  2. Thanks for the heads up on this. I’ve looked into the problem, and PyOSA is returning an error when Script Debugger tries to connect to it. I’ve sent a message to has about this and we’ll have to wait for him to figure out why his code is returning an error.

  3. Charles Bouldin Charles Bouldin

    4.06b3 expires April 30th. Is there a new version?

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