A system is provided for migration of an application between processing servers in a virtual server. The system includes a first processing server, a second processing server, at least one disk for storage, at least one network interface, a control server and an agent. The control server is operable to combine the first processing server with the network interface and disk into the virtual server to operate an application. The agent is coupled to the control server to promote capture from the first processing server of application state information related to execution of the application by the first processing server. The agent further promotes transfer of at least some of the captured application state information to the second processing server to enable the second processing server to execute the application using the at least some of the captured application state information.