In late 2007, Aces Game Studio announced Microsoft ESP (Enterprise Simulation Platform), a development platform for companies that want to create products that use the technology in Flight Simulator. Following the closure of the Aces Game Studio in January 2009, Lockheed Martin announced in late 2009 that they had negotiated with Microsoft a licensing agreement to purchase the intellectual property (including source code) for the Microsoft ESP product. It is the commercial-use version of Flight Simulator X SP2. On May 17, 2010, Lockheed announced that the new product based upon the ESP source code would be called Prepar3D (P3D). Lockheed hired members of the original Aces Game Studio team to continue development of the product.
in late 2007 aces game studio announced microsoft esp (enterprise simulation platform) a development platform for companies that want to create products that use the technology in flight simulator following the closure of the aces game studio in january 2009 lockheed martin announced in late 2009 that they had negotiated with microsoft a licensing agreement to purchase the intellectual property (including source code) for the microsoft esp product it is the commercial-use version of flight simulator x sp2 on may 17 2010 lockheed announced that the new product based upon the esp source code would be called prepar3d (p3d) lockheed hired members of the original aces game studio team to continue development of the product