A capture notification system including a game server and at least two clients, the game server to be coupled to at least two clients (12-1, 12-2, 12-3,..., 12-n) and wherein the game server is configured to execute a program of a game to be participated in by a plurality of users operating different clients (12-1, 12-2, 12-3,..., 12-n), the clients (12-1, 12-2, 12-3,..., 12-n) each having a display unit, wherein a play image is displayed on the display units of the clients (12-1, 12-2, 12-3,..., 12-n), and wherein the game server comprises: a capture request receiving section configured to receive a capture request of a play image indicating content of execution of a program from a first client that is operated by a capture requesting user requesting capture of the image pertaining to another, second client that is operated by a capture object user; and a notifying section configured to transmit to the second client the information that the play image is to be captured in response to the receipt of the capture request in order to notify the capture object user; a capture approval/denial receiving section configured to receive from the second client with the capture object user his or her approval or denial of the capture of the play image by the capture requesting user as policy data and the notifying section further configured to transmit the policy data to the first client, wherein the first client comprises a capture appealing section for the case of the capture object user so far denying the capture of the play image, and wherein the first client comprises an operation signal receiving section, wherein upon receiving a signal reflecting an approval appealing operation, the capture appealing section transmits an approval appeal notification to the second client for notifying the capture object user of the capture approval appeal, wherein the second client comprises a capture appeal handling section that receives the approval appeal notification, and comprises likewise an operation signal receiving section, wherein when that operation signal receiving section receives a capture approving operation, at the second client, a capture approval/denial transmitting and receiving section confirms whether or not the capture approving operation was received and if it is confirmed that the capture approving operation was received, transmits to the server the policy data, the policy data being set to approve capture by the capture requesting user, where a capture approval/denial receiving section of the server updates the setting of the policy data about the capture object user and transmits the updated policy data to the clients, wherein at the first client, a respective capture approval/denial transmitting and receiving section updates the setting of the policy data, whereby the capture of the play image with confidential information about the capture object user is approved for the capture requesting user. a capture request receiving section configured to receive a capture request of a play image indicating content of execution of a program from a first client that is operated by a capture requesting user requesting capture of the image pertaining to another, second client that is operated by a capture object user; and a notifying section configured to transmit to the second client the information that the play image is to be captured in response to the receipt of the capture request in order to notify the capture object user; a capture approval/denial receiving section configured to receive from the second client with the capture object user his or her approval or denial of the capture of the play image by the capture requesting user as policy data and the notifying section further configured to transmit the policy data to the first client, wherein the first client comprises a capture appealing section for the case of the capture object user so far denying the capture of the play image, and wherein the first client comprises an operation signal receiving section, wherein upon receiving a signal reflecting an approval appealing operation, the capture appealing section transmits an approval appeal notification to the second client for notifying the capture object user of the capture approval appeal, wherein the second client comprises a capture appeal handling section that receives the approval appeal notification, and comprises likewise an operation signal receiving section, wherein when that operation signal receiving section receives a capture approving operation, at the second client, a capture approval/denial transmitting and receiving section confirms whether or not the capture approving operation was received and if it is confirmed that the capture approving operation was received, transmits to the server the policy data, the policy data being set to approve capture by the capture requesting user, where a capture approval/denial receiving section of the server updates the setting of the policy data about the capture object user and transmits the updated policy data to the clients, wherein at the first client, a respective capture approval/denial transmitting and receiving section updates the setting of the policy data, whereby the capture of the play image with confidential information about the capture object user is approved for the capture requesting user.