Question: Which Microsoft co-founder was involved in the SpaceShipOne space program?

Context paragraphs:
SpaceDev: SpaceDev, a part of the "Space Systems Business" of Sierra Nevada Corporation, is prominent for its spaceflight and microsatellite work.  It designed and built components for the hybrid rocket motors for Paul Allen's Tier One suborbital SpaceShipOne space program operated by Scaled Composites.  It is also developing micro- and nano-satellites, a small expendable launch vehicle, the SpaceDev Streaker, and has designed a piloted suborbital and orbital spaceship of its own, the SpaceDev Dream Chaser, in collaboration with NASA.

Chinese space program: The space program of the People's Republic of China is directed by the China National Space Administration (CNSA).  Its technological roots can be traced back to the late 1950s, when the People's Republic began a ballistic missile program in response to perceived American (and, later, Soviet) threats.  However, the first Chinese crewed space program only began several decades later, when an accelerated program of technological development culminated in Yang Liwei's successful 2003 flight aboard Shenzhou 5.  This achievement made China the third country to independently send humans into space.  Plans currently include a permanent Chinese space station in 2020 and crewed expeditions to the Moon.

Paul Allen: Paul Gardner Allen (born January 21, 1953) is an American business magnate, investor and philanthropist.  He is known for co-founding Microsoft alongside Bill Gates.  As of June 2017, he is estimated to be the 46th richest person in the world, with an estimated net worth of $20.7 billion.

French space program: The French space program includes both civil and military spaceflight activities.  It is the 3rd oldest institutional space program in history, along with the USSR and the US; and the largest space program in Western Europe.

Mike Melvill: Michael Winston "Mike" Melvill (born November 30, 1940 Johannesburg ) is a world-record-breaking pilot and one of the test pilots for SpaceShipOne, the experimental spaceplane developed by Scaled Composites.  Melvill piloted SpaceShipOne on its first flight past the edge of space, flight 15P on June 21, 2004, thus becoming the first commercial astronaut and the 434th person to go into space.  He was also the pilot on SpaceShipOne's flight 16P, the first competitive flight in the Ansari X Prize competition.

U.S. Space &amp; Rocket Center: The U.S. Space & Rocket Center in Huntsville, Alabama is a museum operated by the government of Alabama, showcasing rockets, achievements, and artifacts of the U.S. space program.  Sometimes billed as "Earth's largest space museum", astronaut Owen Garriott described the place as, "a great way to learn about space in a town that has embraced the space program from the very beginning."

Brazilian space program: The Brazilian space program refers to the rocketry and space exploration programs conducted by Brazil from 1961 until the creation of the Brazilian Space Agency in 1994.  It had significant capabilities in launch vehicles, launch sites, and satellite manufacturing.  It was based at the National Institute for Space Research (INPE), under the Ministry of Science and Technology (MCT).  The program was under complete military control, which hindered its development, as other countries (such as the United States) blocked technological development due to concerns over nuclear proliferation.  In 1994, the space program was transferred to civilian control under the Brazilian Space Agency.

State Space Agency of Ukraine: The State Space Agency of Ukraine (SSAU; Ukrainian: Державне космічне агентство України , "Derzhavne kosmichne ahentstvo Ukrayiny", ДКАУ, "DKAU") is the Ukrainian government agency responsible for space policy and programs.  Along with the Ukrainian Defense Industry and the Antonov Aeronautical Scientific-Technical Complex, it is a major state complex of the national defense industry of Ukraine.  The State Space Agency of Ukraine does not specialize in manned astronautical programs.  It is the second of two direct Soviet space program descendants.  The agency does not have its own spaceport and is often dependent on the resources of the Russian Federal Space Agency (the primary inheritor of the Soviet space program).

Stratolaunch Systems: Stratolaunch Systems Corporation is a space transportation venture developing a new air launch to orbit system, with its corporate headquarters located in Seattle, Washington.  The project was officially announced in December 2011 by Microsoft co-founder Paul G. Allen and Scaled Composites founder Burt Rutan, who had previously collaborated on the creation of SpaceShipOne.

Kerbal Space Program: Kerbal Space Program (KSP) is a space flight simulation video game developed and published by Squad for Microsoft Windows, OS X, Linux, PlayStation 4, Xbox One, with a Wii U version that was supposed to be released at a later date.  The developers have stated that the gaming landscape has changed since that announcement and more details will be released soon.  In the game, players direct a nascent space program, staffed and crewed by humanoid aliens known as "Kerbals".  The game features a realistic orbital physics engine, allowing for various real-life orbital maneuvers such as Hohmann transfer orbits and bi-elliptic transfer orbits.

Supporting paragraphs: SpaceDev Paul Allen
Answer: Paul Allen