A computer program for converting server character code on a CORBA server in a client-server system which is based on common object request broker architecture, the computer program making a computer execute:
- obtaining client character code information set by a CORBA client, from communication data received from the CORBA client;
- and
- converting the client character code information into server character code information, wherein the converting is performed by referring to a table containing a relationship between client character code information that the CORBA client can use and that is not registered in an object reference and server character code information that the CORBA server can use.