Interactive television process applicable to a system where a receiver receives a digital stream comprising a set of applications from at least one transmitting station, wherein the applications comprise software instructions to be executed by the receiver, characterized in that the process comprises: e) reception by said receiver of a first application (A1) proposing loading of a file of additional data into said receiver, wherein the first application (A1) is a validation application through which a user validates loading and storage of said file of additional data; f) upon acceptance by the user of said receiver of the proposed loading: h) downloading and recording in a memory of said receiver, of said file of additional data, a) reception in said receiver, of at least a second application (A2), a third application (A3), a fourth application (A4), wherein the second application (A2) is a startup application, the third application (A3) is a normal application; and executing said second application (A2) causing execution of steps b) and c) or b) and d) herein below; b) testing for the presence in the memory of said receiver of at least said file of additional data and responsively c) in the absence of said file of additional data in said memory, executing the third application (A3); d) if said file of additional data is present in said memory, executing the fourth application (A4) using said file of additional data, wherein said file of additional data is obtained from the digital stream or downloaded from a server. e) reception by said receiver of a first application (A1) proposing loading of a file of additional data into said receiver, wherein the first application (A1) is a validation application through which a user validates loading and storage of said file of additional data; f) upon acceptance by the user of said receiver of the proposed loading: h) downloading and recording in a memory of said receiver, of said file of additional data, a) reception in said receiver, of at least a second application (A2), a third application (A3), a fourth application (A4), wherein the second application (A2) is a startup application, the third application (A3) is a normal application; and executing said second application (A2) causing execution of steps b) and c) or b) and d) herein below; b) testing for the presence in the memory of said receiver of at least said file of additional data and responsively c) in the absence of said file of additional data in said memory, executing the third application (A3); d) if said file of additional data is present in said memory, executing the fourth application (A4) using said file of additional data, wherein said file of additional data is obtained from the digital stream or downloaded from a server. a) reception in said receiver, of at least a second application (A2), a third application (A3), a fourth application (A4), wherein the second application (A2) is a startup application, the third application (A3) is a normal application; and executing said second application (A2) causing execution of steps b) and c) or b) and d) herein below; b) testing for the presence in the memory of said receiver of at least said file of additional data and responsively c) in the absence of said file of additional data in said memory, executing the third application (A3); d) if said file of additional data is present in said memory, executing the fourth application (A4) using said file of additional data, <EOS>