The present invention provides: a virtual processing server with which comments are randomly posted to the content which has a small number of viewers and comment posts, thereby liven up the content, a control method for a virtual processing server, a content delivery system, and an application program for a terminal device.
A virtual processing server 3 in the content delivery system is provided with: a content delivery server 1 which provides a content delivery service to a terminal device 5; a comment delivery server 2 which delivers a comment posted to a content; and a virtual processing server 3 which virtually executes processing to the content, wherein the server accesses to the content, and is provided with: an execution control unit 31 which virtually executes processing; and a first condition determination unit 31 which determines a predetermined first condition for executing the access, wherein the execution control unit 31 executes the access to the content when it is determined that the predetermined first condition has been satisfied.