ExtraPuTTY is based on PuTTY software which is developed by Simon Tatham team's under MIT license (PuTTY's license).
The ExtraPuTTY Licensing Model Version 3.0 (funny donate)
ExtraPuTTY is a free software and copyright 2007-2016 Sebastien Blavier.
The ExtraPuTTY executables are distributed under the Earth license as described below :
Permission is hereby granted, free of charge, to any person obtaining a copy of this software
without limitation the rights to use, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
Do your possible :
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software :
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL SIMON TATHAM and SEBASTIEN BLAVIER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
The precise license text, as given in the About box and in the file license in the distribution and affects all versions of ExtrapuTTY since 0.30.
In particular, anybody (even companies) can use ExtraPuTTY without restriction (even for commercial purposes) and owe nothing to me or anybody else. Also, apart from having to maintain the copyright notice and the licence text in derivative products, anybody (even companies) can use the ExtraPuTTY into their own programs and products (even commercial products) and owe nothing to me or anybody else. And, of course, there is no warranty and if ExtraPuTTY causes you damage you're on your own, so don't use it if you're unhappy with that.