What is a third-party product?
Products Affected
Mac OS X 10.3, Mac OS X 10.2, Mac OS X 10.0
A third-party product refers to a product that's produced by a company other than Apple. Usually, third-party products are supported by the company that made them (just like we here at Apple support the products we make). For that reason, if you need help with a third-party product, contact the company who made the product instead of Apple. Do note that Apple does support some third-party products that come with an Apple computer.
So who are the first and second party?
Technically speaking, Apple is the "first party," but that's not really a common phrase. The second party usually refers to the product's user—that would be you!