To build wpr3287, start a Cygwin shell, cd to the directory where the source code resides, and type:
make
This process will probably fail (sorry) because the Makefile assumes that you have installed a MinGW-compatible version of the OpenSSL library. This is not a commonly-available package but can be easily built from source. Visit the OpenSSL webpage for details.
To build without SSL support, there are three lines to comment out in the Makefile before running make.
wpr3287 was developed primarily on 32-bit Windows XP, but should be buildable on Windows Server 2003 or Windows 2000. It has not been built or tested on 64-bit Windows or on Windows Vista.