Contains all PFM files in a plain zip file.
You can just extract it and run them.
The automatic update of the PFM uses these files.
Contains the standalong ESF editor (opens replays, savegame, startpos.esf etc).
Also extract and run.
Contains the zipped automatic installers for the PackFileManager;
it will also register .pack files with the PFM executable.
This is not maintained and will not give you the most up-to-date version.
Contains code including bug fixes and features that have not yet been verified.
Code is compiled as a non-optimized Debug version and may be unstable.
This is intended for internal development only.
Both PackFileManager and EditSF require .NET 4.0 to run.
They do run reasonably well with mono on Linux.