Abstract: An IM system for an additional service includes: an IM client and at least one IM component adapted to support at least one additional service, between which a common interface is configured. The IM client triggers the at least one IM component via the common interface when a local IM user logs on; and the at least one IM component obtains an identity of at least one IM user other than the local IM user via the common interface, and query, according to the identity, whether the at least one IM user subscribes to one of the at least one additional service supported by the at least one IM component. A component and method for an additional service are also provided. By utilizing the IM system, component and method, extensibility of the IM system can be improved, and costs for extending the IM system can be reduced.

Abstract: A method and system for obtaining logon information are provided, and the method includes: receiving a request for logon information from a value-added service client; sending the request for the logon information to an Instant Messaging (IM) client corresponding to the value-added service client; receiving the logon information from the IM client; and sending the logon information to the value-added service client.

Abstract: Embodiments of the present invention provide a service accessing control method, including generating a service group comprising more than one client, and generating a key for the service group; searching for, by the more than one client in the service group, a service component on a server, encrypting, by a client who first searches out the service component, the service component with the generated key; and accessing, by the other clients in the service group, the encrypted service component with the generated key. The embodiments of the present further also provide a terminal and system corresponding to the method. By the embodiments of the present invention, it can be guaranteed that a invitation flow is not disturbed by external users, thereby increasing the success rate of the invitation.

Abstract: Embodiments of the present invention provide a service accessing control method, including generating a service group comprising more than one client, and generating a key for the service group; searching for, by the more than one client in the service group, a service component on a server, encrypting, by a client who first searches out the service component, the service component with the generated key; and accessing, by the other clients in the service group, the encrypted service component with the generated key. The embodiments of the present further also provide a terminal and system corresponding to the method. By the embodiments of the present invention, it can be guaranteed that a invitation flow is not disturbed by external users, thereby increasing the success rate of the invitation.

Abstract: An IM system for an additional service includes: an IM client and at least one IM component adapted to support at least one additional service, between which a common interface is configured. The IM client triggers the at least one IM component via the common interface when a local IM user logs on; and the at least one IM component obtains an identity of at least one IM user other than the local IM user via the common interface, and query, according to the identity, whether the at least one IM user subscribes to one of the at least one additional service supported by the at least one IM component. A component and method for an additional service are also provided. By utilizing the IM system, component and method, extensibility of the IM system can be improved, and costs for extending the IM system can be reduced.

Abstract: A method and system for obtaining logon information are provided, and the method includes: receiving a request for logon information from a value-added service client; sending the request for the logon information to an Instant Messaging (IM) client corresponding to the value-added service client; receiving the logon information from the IM client; and sending the logon information to the value-added service client.

Abstract: This invention provides a service application platform and a method for accessing a service application platform. The service application platform includes: a processing interface, adapted to send a service request to a service application client; the service application client, adapted to receive the service request sent from the processing interface, and to send the service request to a server; and the server, adapted to process the service request, and to provide a user with requested information.

Abstract: A method for controlling service access is provided. the method includes: creating a service group comprising more than one client; searching, by a server, for a service component, wherein the number of users allowed to access the service component is larger than or equal to the number of the clients in the service group; configuring the service component as being accessible to only the clients in the service group; and informing the clients in the service group that the service component is accessible; and accessing, by the clients in the service group, the service component. A server and a system corresponding to the method are provided at the same time. By applying the method and system of the present invention, success ratio of the invitation is improved and the implementation procedure is simplified.