1. One or more computer-readable media having computer-executable instructions embodied thereon that, when executed, perform a method for dynamically targeting and updating portions of an overloading index utilizing a dynamic update of index (DUI) object that exposes modified content of one or more documents, the method comprising: receiving an indication that a modification has occurred to the content of the one or more documents; generating the DUI object that identifies one or more of the documents and exposes the modified content; publishing the DUI object to a network manager that instructs an agent to provide a request to download the DUI object; receiving the request from the agent; and in response to the request, pushing the DUI object to the agent, wherein the agent is configured for initiating an update process that applies the DUI object to overloading index and invokes updating the portions of the overloading index, which are targeted by the DUI object.