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RealNetworks Public Source License Version 1.0
SPDX ID: RPSL-1.0Added 2026-04-19
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Apache Software License
Apple Public Source License
Artistic license
Attribution Assurance Licenses
BSD license
Common Public License1
Eiffel Forum License
GNU General Public License (GPL)1
GNU Library or "Lesser" General Public License (LGPL)1
IBM Public License
Intel Open Source License
Jabber Open Source License
MIT license
MITRE Collaborative Virtual Workspace License (CVW License)
Motosoto License
Mozilla Public License 1.0 (MPL)
Mozilla Public License 1.1 (MPL)
Nokia Open Source License
Open Group Test Suite License
Python Software Foundation License
Ricoh Source Code Public License
Sun Industry Standards Source License (SISSL)
Sun Public License
University of Illinois/NCSA Open Source License
Vovida Software License v. 1.0
W3C License
X.Net License
Zope Public License
zlib/libpng license
1Note: because this license contains certain reciprocal licensing terms that purport to extend to independently developed code, You may be prohibited under the terms of this otherwise compatible license from using code licensed under its terms with Covered Code because Covered Code may only be licensed under the RealNetworks Public Source License. Any attempt to apply non RPSL license terms, including without limitation the GPL, to Covered Code is expressly forbidden. You are responsible for ensuring that Your use of Compatible Source Licensed code does not violate either the RPSL or the Compatible Source License.
The latest version of this list can be found at: https://www.helixcommunity.org/content/complicense
EXHIBIT C
RealNetworks' Trademark policy.
RealNetworks defines the following trademarks collectively as "Licensor Trademarks": "RealNetworks", "RealPlayer", "RealJukebox", "RealSystem", "RealAudio", "RealVideo", "RealOne Player", "RealMedia", "Helix" or any other trademarks or trade names belonging to RealNetworks.
RealNetworks "Licensor Trademark Policy" forbids any use of Licensor Trademarks except as permitted by and in strict compliance at all times with RealNetworks' third party trademark usage guidelines which are posted at www.realnetworks.com/info/helixlogo.html.