Abstract: Methods, systems, and apparatus, including computer program products, for a rental service through a computer network. A collection of virtual containers is assigned to a set of users including one or more users. Each virtual container in the collection is configured to identify one or more software products that are rented by users in the set. A user in the set is authorized to access a software product through the computer network based on whether the software product is identified as a rented software product in one or more virtual containers of the collection assigned to the set of users.

Abstract: Methods, systems, and apparatus, including computer program products, for a rental service through a computer network. A collection of virtual containers is assigned to a set of users including one or more users. Each virtual container in the collection is configured to identify one or more software products that are rented by users in the set. A user in the set is authorized to access a software product through the computer network based on whether the software product is identified as a rented software product in one or more virtual containers of the collection assigned to the set of users.

Abstract: Methods, systems, and apparatus, including computer program products, for a rental service through a computer network. A collection of virtual containers is assigned to a set of users including one or more users. Each virtual container in the collection is configured to identify one or more software products that are rented by users in the set. A user in the set is authorized to access a software product through the computer network based on whether the software product is identified as a rented software product in one or more virtual containers of the collection assigned to the set of users.

Abstract: A system and method are directed towards detecting that a client is participating in an online service such as an online multiplayer game. A client probe module monitors an operating system process list to detect an executable file name, indicating that a client program is executing. The client probe evaluates client program communication to determine whether the communication is consistently directed to the same online service and meets a predefined communication rate threshold. The executable file name and communication rate threshold are provided before the client probe begins monitoring the process list. Meeting the threshold may cause the client program to instruct a client messaging module to send a message to contacts associated with the client through an independent portal service. The contacts may not be registered members of the online service, but the message may include information that enables the contacts to communicate with the same online service.

Abstract: Methods, systems, and apparatus, including computer program products, for a rental service through a computer network. A collection of virtual containers is assigned to a set of users including one or more users. Each virtual container in the collection is configured to identify one or more software products that are rented by users in the set. A user in the set is authorized to access a software product through the computer network based on whether the software product is identified as a rented software product in one or more virtual containers of the collection assigned to the set of users.