File Maven ™ (DOS) is an free DOS freeware file manager with high speed PC-to-PC file transfers via serial or parallel cable. The user interface features a dual directory display with pull-down menus, mouse support, hot keys, 50-line video support, and a choice of 10 pre-defined color schemes.
Features

Copy, Move, [...]

LiteShell is a tiny, ultra-fast shell for Windows, designed for slow PCs. It uses very little CPU/RAM. The source is included in the installer and is available as a learning aid. Any changes you make must be made available to me, if you distribute the altered program (this is GPL-compatible). You can email me about [...]

Palindrome checker takes input from a file or keyboard, and lists out all palindrome words. This checker identifies even multiple words which are palindrome. This is a console based program, without arguments to the program, will act as a console shell, which takes input from keyboard and processes the words.
Recursive string reversal function is used [...]

APIs specified in POSIX for browsing through directories are implemneted in windows. This implementation is
a wrapper around windows native calls. Using these POSIX function calls, we can port programs related to directory
browsing and use these calls without learning windows specific calls.
Here are the POSIX APIs which I’ve implemented
opendir
closedir
readdir
rewinddir
seekdir
telldir
scandir
ftw
dirfd
stat
Download
[dirent.h] [dirent.c]

PoTerm is serial terminal shell talks to serial ports and it is capable of sending AT commands to modems. A serial communication library is also available. Works on Windows and linux also.
Download (source & binaries)
v1
PoTerm-1.0.zip 65.62Kb
v2
PoTerm-2.0.zip 87.43Kb
Documentation
Docs
PoTerm-2.0-Doc.zip 16.42Kb
Snapshots
v2 Release Notes
An enhanced cmd shell provided to intaract with serial port
A serial communication library
connection profile saving, log [...]