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Ever since the release of Windows NT, Microsoft has relied on security descriptors to control authorization for system resources in a unified manner. These can be applied to every file, key, thread, process, event, mutex, semaphore, job, desktop, section, Active Directory object and various other object types found on an NT system.

The first security descriptor included in Windows NT 3.1 offered limited functionality, as did the newer editor introduced with the release of Windows 2000.

SD Edit is an open-source program created to unlock the full functionality of these security descriptors by presenting them to the user in a direct form and making it possible to have full control over the details.

It is designed to display the constituent elements of a security descriptor in a more direct form than then shell editor, which is why it is important for the user to understand how the NT security system works at a low level.

A simple usage example will be displayed when launching the executable file, and you need to run the program from the command console to provide all the necessary parameters. To help users get the hang of things, extensive documentation is included in the downloadable archive.