A list of queries sent from the update app to the web server to check for software updates for each of the part numbers in the request. A query sent from the update app to the web server to check for a software update for a single part number. The code that identifies the installed language of this application. See LANGID in MSDN. The formatted XXX-XXXXX-XX part number of a PC application. The version number separated into 4 pieces. PC software will use all 4 pieces in a 6.3.1.0 format. An enumeration for the build type of the software. The server side would only ever respond with "Beta" or "Release". A list of information sent from the web server to the update app in response to a Requests_t. Information sent from the web server to the update app in response to a Request_t. The part number in the Request_t that this is in response to. This URL provides optional additional information relevant to this unit Information needed to download the update. This URL provides optional additional information relevant to this update Information about a file that can be downloaded.