File:NTPermissions.png

Summary
This software is copyrighted, but its screenshot is being used here under U.S. fair use laws, because:
 * it helps to visually identify a specific visual component of the software; without visual identification, the effect is impossible to be communicated. In that sense it furthers the goal of providing verifiable information.
 * it does not limit, nor does it claim to, limit the rights of the copyright holder.
 * it does not, in any way, assist in illegal reproduction of the software or any other things covered by the license of the software.
 * it is being used for informational purposes.
 * it is copyrighted, so free equivalent cannot exist.

The rationale applies to the usage in NTFS as a method of illustrating the ACLs used by NTFS for Windows NT permissions, adjacent to the text. By definition, there is no free replacement for its use here.