An example method includes executing a first executable application designed for execution using a first application programming interface (API). A first registration request is accessed from a second executable application designed for execution using a second API different from the first API, the first API and the second API executed within a same operating system environment. In response to validating of a digital certification of the second application, information from the first registration request is saved into a registration store. An event is raised having an event type and event information, and in response to determining that an event type of the raised event is saved in the registration store, the raised event is sent without requiring further authentication from the second executable application.