steam://ExitSteam Exits the Steam application. Steam://defrag/ Defragments files of the application. You don't have to specify anything else to connect to a third party mod server, everything will be automatically detected. steam://connect/ Connects the user to the server specified by the IP or DNS name. steam://browsemedia steam://checksysreqs/ Checks if users computer meets system requirements of app. If an application is not specified then nothing will be checked. steam://backup/ Opens up the Backup Wizard and checks the specified application.
steam://appnews/ Opens up the news page for an app. steam://ackMessage/ackGuestPass/ Accepts the specified Gift or Guest Pass. Note: If you would like to programmatically add or remove non-Steam games, see Adding Non-Steam Games steam://advertise/ Opens the store to an application's page.
