It is difficult to prevent virus infection, information leakage or the like for example when a user carelessly manipulates a file. An electronic file manipulating section that obtains an instruction about manipulation of an electronic file; a remote manipulation section that establishes a communication path enabling remote manipulation with an execution environment in which manipulation of the electronic file is to be executed, and transmits an execution instruction to instruct the execution environment to execute manipulation of the electronic file thereon to the execution environment via the communication path enabling remote manipulation; and an electronic file transmitting section that transmits the electronic file to the execution environment in response to the instruction are included.