The paper introduces a practical Web system which activates institutional repositories. Institutional repository is an important service of libraries in academic institutions. The authors of the paper developed a linking system between the institutional repository and the researcher database of their university. By the developed system papers registered in the institutional repository are linked from lists of papers in the researcher database, which improves the accessibility of the institutional repository. Additionally, the system reuses the metadata of the papers registered in the researcher database for registrations to the institutional repository, which reduces the efforts of researchers. As a result, this system is expected to encourage the registration of papers to the institutional repository. The paper describes the concepts and the details of the system. The essential idea can be applied to other academic institutions.