Abstract: A system and method for establishing associative relationships between properties of a contained object and corresponding parameters of a container application is disclosed herein. The present system contemplates the establishment of both mutual and unilateral associative relationships, with a particular relationship being specified via a user interface created upon instantiation of the contained object. Such associative relationships may be advantageously established without modification of the code comprising the contained object. In one aspect the present system facilitates implementation of selected functionality of a container application prescribed by an event script. In this context an association is created between an event arising within a contained object instantiated in a computing environment and a script associated with the container application. An event indication is generated in response to occurrence of a particular event within the contained object.