OwenShow is an open-source file browser demonstrating various techniques/failures in Borland Kylix/Delphi code, including fork, drop/drag, and much more. Unlike other browers, directories are scanned explicitly and, if desired, to full depth, i.e. to get detailed descriptions of directory trees. Finding directories/files is supported by inexact/exact cumulative search.
DynChap provides an additional pseudo hardware token based authentication layer for PoPToP virtual private networks. The authentication uses the user's mobile phone to generate a hash that needs to be entered along with the user's password in a custom connection dialogue. Upon connecting, the VPN verifies the authenticity of the hash. The hash is generated from a serial (by default 32 printable characters) stored in the J2ME based mobile phone and the current time; the VPN server compares this hash against the serial and current time, minus or plus a small deviation (by default 2 minutes). If the username, password, and hash match, access is granted and the custom dialer is closed, the connection can now be controlled like an ordinary VPN connection.
Necromancer's Dos Navigator is a "Norton Commander" clone. It uses a well known text-mode interface, is highly customizable, and has a lot of features. Its key features are a text editor with syntax highlighting, horizontal/vertical blocks, multiple codepages, undo/redo, bookmarks, powerful searching, and regex; a file viewer with text view, asm/dump/hex edit, raw blocks, header viewer, search, regex, and unlimited filesize; a powerful filepanel with higlighting, VFSs, and filefind with textsearch and regex; a calculator; and more.