A method, system, and device embodiments for interfacing a program are disclosed. A computing device can include an application layer, an operating system layer, and an interface module. The operating system layer can include a first type of operating system and associated application program interfaces (APIs). The interface module can be coupled between the application layer and the operating system layer. The interface module can receive program instructions from a program in the application layer written for a second type of operating system and can process the instructions by directing the instructions to APIs that correctly execute the instructions.