In my case, DLookup was being used to find unknown values in a OTLT :w00t: based on a primary key. For example: using a random address book number to find a customer's name, the sales agent, the co-sales agent, and the manager all from the same AddressBook table downloaded nightly from an ERP source. I have several Access queries that have as many as 15 DLookups from as many as 5 separate tables. I have never come across an example as simple as the one given in the article.