The files czmq.dll, libzmq.dll, libsodium.dll, are provided "as is", they are
executables made respectively from the 3 following softwares:
 - czmq can be found at: https://github.com/zeromq/czmq
 - libzmq can be found at: https://github.com/zeromq/libzmq
 - libsodium can be found: https://github.com/jedisct1/libsodium
 - The source for the executable bwheadless.exe can be found at https://github.com/tscmoo/bwheadless 