FE3H Access includes the following software. Their license texts are in the licenses folder.

Prism (prism.dll)
  The Platform-agnostic Reader Interface for Speech and Messages: speech through your screen reader (NVDA, JAWS and others) or a
  Windows voice. By the Prism project.
  License: Mozilla Public License, version 2.0 (licenses\Prism-MPL-2.0.txt).
  Source code: https://github.com/ethindp/prism
  prism.dll is shipped unmodified, as a separate file. Prism includes other projects' code, each under its own license
  (licenses\Prism-NOTICE.txt lists them): simdutf (Apache-2.0, licenses\Prism-simdutf-Apache-2.0.txt), the NVDA controller
  client's RPC definitions (relicensed to MPL-2.0 with permission; the original LGPL-2.1 text is kept for attribution,
  licenses\LGPL-2.1.txt), Moderncom (MIT), {fmt} (MIT), concurrentqueue, dr_wav, Highway, djinni (Apache-2.0) and NVGT's SAPI
  bridge (licenses\Prism-*.txt).

NAudio (NAudio.Core and NAudio.WinMM, built into FE3HAccess.exe)
  Audio library, copyright Mark Heath and contributors.
  License: MIT (licenses\NAudio-MIT.txt).
  Source code: https://github.com/naudio/NAudio

.NET (the runtime, built into FE3HAccess.exe)
  Copyright .NET Foundation and contributors.
  License: MIT. https://github.com/dotnet/runtime
