Microsoft Technology Licensing, LLC

John Mitchell Walker

Shawn L Hargreaves

Paul Lawrence Bleisch

Matthew Picioccio

Thomas Wayne Miller, Jr

Richard Andrew Meyer

Tom Miller

Shawn Hargreaves

Matthew Orren Picioccio

Thomas Wayne Miller Jr

Paul L Bleisch

Systems, methods and computer readable media are disclosed for a trusted proxy to intercept communications between an untrusted computerized gaming system and an online multi-player gaming service that requires games to be trusted, allowing the untrusted computerized gaming system to use the multi-player gaming service. In addition to allowing the untrusted computerized gaming system to use the multi-player gaming service in general, the trusted proxy can also limit the extent of the interaction between the untrusted computerized gaming system and the multi-player gaming service.

Untrusted gaming system access to online gaming service

Mechanisms are disclosed that allow for execution of unsigned content and the securing of resources in a closed system when such unsigned content is executing on the system. For example, an application programming interface is used between an access layer implementing unsigned content and an operating system of the closed system. The application programming interface may have sub-interfaces that correspond to sub-layers of the access layer, including a graphics sub-interface, an audio sub-interface, an input sub-interface, and a storage sub-interface. These sub-interfaces present access calls made by the sub-layers to the protected resources of the closed system. By providing the application programming interface, unsigned content, e.g., video games can run on a closed system that is typically designed to run only signed content.

Programming framework for closed systems

Mechanisms allow for execution of unsigned managed code graphic resource call in a closed system when such unsigned content is executing on the system. For example, a managed code graphic resource device is used between an application running unsigned content and a supervisor mode graphic resource device. A managed mode graphics device validates graphic resource calls made by the application. A managed mode graphics device manages resource calls by differentiating between calls that may be made directly to the supervisor mode graphics device, calls that may be pipelined for later action, and calls that may be made to an intermediate device.

Systems, methods and computer readable media are disclosed for an overlaying requester to send graphics commands to a game connected to the overlaying requester via a dummy graphics application programming interface (API) object that the game will render over normal game-play graphics. In addition to allowing the overlaying requester to send graphics commands to the game in general, the dummy graphics API object can also limit the extent of the interaction between the overlaying requester and the computerized gaming system.

Proxy direct 3-D device and remote rendering

Mechanisms are disclosed that allow for platform abstraction of a computing platform using a programming framework. The programming framework allows application programs to interact with different platforms in an identical manner by abstracting the platform. The application uses identical instructions to the programming framework across different platforms, with the programming framework modifying the instructions to fit platform specific requirements. The programming framework also emulates platform specific expected application behavior on behalf of the application. The programming framework may also provide an additional layer of security for the platform, limiting the access of the application program.

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Duvall, WA, United States of America

John Mitchell Walker