Product updating with custom actions

A properly configured custom action allows a software product to be efficiently and effectively maintained. A custom action is associated with a software product. When the software product is installed on the client device, the custom action facilitates updating on the client. The custom action detects a recache/reinstall command from the source. The custom action identifies the product source, builds a model of the product, and identifies which updates to apply to the software product. When the updates have been identified, the custom action registers the updates on the client computer.