Techniques for enhancing or replacing host operating system functionality by leveraging guest operating system functionality are disclosed. Incoming data is received from a computing resource of a host operating system, and, before the incoming data is transmitted to a higher-level module in the host operating system, the incoming data is intercepted by a set of one or more leveraged guest modules in a guest operating system. After intercepting the incoming data, the leveraged guest modules perform one or more operations on the incoming data. The leveraged guest modules may provide more advanced support and capabilities to perform these operations than any counterpart functionality in the host operating system. In addition to performing these operations, the leveraged guest modules also determine whether or not to return the incoming data to the host operating system.