I originally thought this would be illegal because of the Skype EULA. In Blizzard vs Bnetd the eight circuit ruled that, while reverse engineering for interoper

I originally thought this would be illegal because of the Skype EULA. In Blizzard vs Bnetd the eight circuit ruled that, while reverse engineering for interoperability is permitted in some cases, you waive these rights when you agree to an EULA that says you can't. https://www.eff.org/issues/coders/reverse-engineering-faq#footnoteref5_bk09tif https://www.eff.org/issues/coders/reverse-engineering-faq#fo... HOWEVER the skype terms of use read: 4.2 Restrictions. You may not and you agree not to. (a) sub-license, sell, assign, rent, lease, export, import, distribute or transfer or otherwise grant rights to any third party in the Software; (b) undertake, cause, permit or authorize the modification, creation of derivative works or improvements, translation, reverse engineering, decompiling, disassembling, decryption, emulation, hacking, discovery or attempted discovery of the source code or protocols of the Software or any part or features thereof (EXCEPT TO THE EXTENT PERMITTED BY LAW); (emphasis mine)