An aid server (AS) comprises a processing module (PM) which stores a user identifier (UID) and an identifier (SID) of a stage of an application of the virtual office type, said identifiers being retrieved from a request sent by the terminal and designating an action need by the user. The request (REQt) is sent to a respective application implemented in at least one server (VOS.sub.i) which executes the needed action and develops an answer sent to the aid server. A suggestion module (AM) analyzes lists of previously needed user actions to suggest a list of actions which are associated with stage identifiers. A graphics module (GM) incorporates an aid including the suggested actions list into the answer (ANSt) which is sent to the user terminal in order that the user shall select another action from the list of suggested actions.
