Third-party licenses

Notices for software included with or used by SidianRDP

This page summarizes third-party components inspected in the SidianRDP tree (see also the repo file THIRD_PARTY_NOTICES.md). Full license texts remain with each upstream project. GPL/LGPL native plugins and OpenH264 are omitted from v1 host builds by policy.

Native host (shipped / linked)

Component	License	Source / notes
FreeRDP	Apache License 2.0	Vendored at `native/third_party/FreeRDP`. github.com/FreeRDP/FreeRDP. Windows server path (DXGI). Upstream `LICENSE` applies. SidianRDP applies product-local patches (password, TLS/NLA, CLI). No GPL plugins.
WinPR	Apache License 2.0	Bundled within the FreeRDP tree (Windows Portable Runtime).
OpenSSL	Apache License 2.0	openssl.org / Shining Light Windows builds. TLS for the FreeRDP-based host; runtime DLLs may ship beside `SidianRDP.Host.exe` when dynamically linked.
zlib	zlib License	Inspected at `native/deps/zlib` (madler/zlib). zlib.net. Built via `native/scripts/build-zlib.ps1`; linked into the FreeRDP host.

Explicitly omitted from v1 native builds

OpenH264 / H.264 encoders — redistribution / patent clarity
Windows Media Foundation H.264 (WITH_MEDIA_FOUNDATION off)
FreeRDP shadow server CLI — not used
GPL/LGPL channel plugins — commercial redistribution policy

Desktop tray

.NET 8 / WPF / Windows Forms — MIT / Microsoft terms (tray redistributable)

Installer tooling

WiX Toolset — Microsoft Reciprocal License (Ms-RL); build-time tooling

Website / server (not in the native host binary)

Laravel, Laravel Breeze, Laravel Cashier — MIT
Stripe API / PHP SDK — Stripe terms (server-side)
PHP — PHP License
MySQL / MariaDB — GPL (server database only; not linked into the Windows host)

FreeRDP — Apache License 2.0 (summary)

FreeRDP is licensed under the Apache License, Version 2.0. You may obtain a copy at http://www.apache.org/licenses/LICENSE-2.0. Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND. The complete text is in native/third_party/FreeRDP/LICENSE.

zlib — license notice

Copyright notice:

 (C) 1995-2026 Jean-loup Gailly and Mark Adler

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.

Product license

Your use of SidianRDP itself is governed by the EULA, not by the licenses of third-party components (except as those licenses require for the components themselves).