1. A computer implemented method, comprising: under the control of one or more computer systems configured with executable instructions, receiving an application at a server associated with an electronic application store; introducing classpath modifying code into the application, the classpath modifying code, when executed by a computing device, causing the computing device to: generate a classpath associated with the application to reference one or more classes; and be configured to retrieve the one or more classes to enable at least one function of the application without requiring an update of the application.