Development Tools

Help Workshop (1.46 M) Basic tool for writing help files. You'll also needs Microsoft Word or something that can make RTF files with features like double underline and hidden text (Wordpad doesn't have that).
Sphinx C-- (641 K) It's a mix of C and assembly with output efficiency close to assembly, but source code closeer to C. It the editor it comes with is very good. Sphinx C-- is Greenware.
QBasic (286.8 K) It's in interprited language, and easy to use good to learn on if you've never programmed before, but it lacks the power and many of the advanced programming concepts C and even Pascal have.
GWBasic (58.9 K) It's just like QBasic only without the IDE.

www.htsoft.com/products/pacific.html (696 K) the page on Pacific C which is a very good, very complete version of C; It has a compiler and IDE. Pacific C used to be shareware but is now freeware!
http://www.delorie.com/djgpp 32-bit development environment for DOS. You can get C, C++, Objective C, an Assembler, Bison, and Flex.
Free Basic Translator Home Page has Turbo Pascal 5.5, Tubro C 2.0, MASM (Microsoft Assembler), and lots of translators and compilers
http://java.sun.com/j2se a version of Java for just about any OS
www.perl.com a version of Perl for just about any OS
The Haskell Home Page Haskell is a purely functional programming language. Its code is compact, easy to debug, and makes one think about programming differently than imparitive languages do.