Zhap is the shell, or command language interpreter for Win32. It is console program and try to replace command.com.
There is snapshot available to download. But this version is very limited. Look more details in the summary page. Project plan is here. Zhap is console program, but it support colors, look screenshot.
JP Software - Expensive but the best availeble shell(s).
WinOne - Colorful shell.
Hamilton C shell - Commerial choise of Cygwin.
Cygwin - Offers Ash/Bash/tcsh/zsh + other tools ported from Unix.