1. A computer-readable storage medium that does not consist of a signal, the computer-readable storage medium having computer-executable instructions stored thereon that, when executed, cause a computing device to perform a computer-implemented method for providing version-specific content, the the method comprising: receiving a search query from a user computer system for a particular product installed on the user computer system; searching a repository of general content related to a variety of products having multiple versions for product-specific content related to the particular product installed on the user computer system; accessing a persistent descriptor of a detected version of the particular product installed on the user computer system; and scoping a search result comprising a set of general content related to the particular product that is responsive to the search query and includes product-specific content related to multiple versions of the particular product by: filtering the product-specific content related to the multiple versions of the particular product included in the set of general content based on information in the persistent descriptor, and identifying a subset of version-specific content related to the particular product that is specific to the detected version of the particular product installed on the user computer system from the set of general content related to the particular product that is responsive to the search query.