1. Install cygwin
2. Copy:

\GCC\
environ-dc.sh
kos-install.sh
dcload-ip-1.0.3.tar.gz
kos-1.1.6.tar.gz

to C:\cygwin\
3. Run cygwin
4. Type './gcc-install.sh' then press enter  (This will take a long ass time)
5. Using nano or another UNIX text editor, edit /kos-*/utils/genromfs/genromfs.c to include the line '#define _WIN32' in the beginning
6. Edit ~/.BASHRC to contain the following line '. ./environ-dc.sh'
7. Edit /kos-*/Makefile to add '#' in front of the line 'cp lib-release/libm.a lib/'
8. Edit /dcload-ip-*/Makefile.cfg for cygwin
9. Restart cygwin
10. Type './kos-install.sh'