HOWTO: Extract rar files on Cygwin

Compile and install unrar:

$ wget http://www.rarlab.com/rar/unrarsrc-5.1.7.tar.gz
$ tar -xzvf unrarsrc-5.1.7.tar.gz
$ cd unrar
$ make

Copy the resulting unrar.exe file to /usr/loca/bin/ directory. Now you are ready to uncompress your .rar files.