You can check out the latest code (from a UNIX type machine) using
CVS as follows:

cvs -z3 -d:pserver:anonymous@cvs.freedos.sourceforge.net:/cvsroot/freedos login
Password: Press the Enter key.

Then, to get the kernel code:
cvs -z3 -d:pserver:anonymous@cvs.freedos.sourceforge.net:/cvsroot/freedos
checkout kernel


You can also view the CVS code from the web at
http://freedos.sourceforge.net/
Go to the CVS page.