First in world selfmade client to Skype Network based on reversing original Skype 5.5 client.
For now, only message receive and sending.
Try to compile it (with Visual Studio 2010) and test by youself or use already compiled binaries.
Links:
Protocol brief overview: http://skype-open-source2.blogspot.ru/2016/06/skype-protocol-dumps.html
Release post: http://skype-open-source2.blogspot.ru/2016/09/first-in-world-skype-network-compatible.html
Binaries: http://epycs.ru/files/EpycsMessenger2_20160901.zip http://yadi.sk/d/xvKhmImdugThn
Sources (same as on github here): http://epycs.ru/files/EpycsMessenger2_20160901_src.zip http://yadi.sk/d/V_IWJT-fugvND