Abstract: A client server system uses a client subsystem, a server subsystem and an interconnecting data network. The client subsystem client application initiates a secure connection over the network with the server subsystem which includes a server application cooperating with the client application to complete a secure connection with the client application and which transmits output data over such a connection in response to requests for service by the client application. The server subsystem additionally generates a notification, in response to detecting an event in the absence of a secure connection between the server and the client, and transmits the notification to the notification server which forwards the notification over the interconnecting network to the client application.

Abstract: A method and system for controlling service requests from a client to a server involves intercepting and controlling the transmission of service requests from the client to the server. The service requests are queued at the client and the transmission of the queued service requests are delayed to smooth the frequency of service requests transmitted to the server.

Abstract: The invention addresses the problems of server overload by installing an integrity manager (32) which intercepts calls from the client (10) to the server (12) and delays them. In addition the Integrity manager (32) can be downloaded automatically when a server service is first invoked.