Microsoft Corporation
Side-by-Side Execution of Same-Type Subsystems Having a Shared Base Operating System

Abstract:

A method includes receiving an API call including a request to resolve an API set contract to an associated host binary file, where the API set contract defines a set of APIs. The method further includes evaluating a runtime context of the API call to determine an application identifier for an application that initiated the request to resolve the API set contract to the associated host binary file. The method further includes executing elements of a first host binary instead of a second host binary responsive to determining that the API call was placed by a first application and executing elements of the second different host binary instead of the first host binary responsive to determining that the API call was placed by a second application.