Updating dictionary during application installation

Methods, computer program products and systems for updating a dictionary on a computer are provided including identifying a set of words included with an application program being installed on the computer and identifying one or more installed dictionaries within the computer. The dictionaries that are identified, typically by searching the computer for installed dictionaries, may then be updated by adding one or more words of the set to at least one of the installed dictionaries. Optionally, one or more installed dictionaries may be identified by the user responding to a query asking the user to identify dictionaries or applications that contain dictionaries installed on the computer. An application programming interface may add the words to the dictionaries by associating the installed dictionaries with one or more installed application programs and identifying an API that is specific for the application and using the API to update the dictionaries.