Apparatus and method for seamless application integration

PURPOSE: An apparatus and a method for integrating seamless applications are provided to install a seamless application integrated module which is dynamically required for the running time of a virtual guest machine without the integrated module. CONSTITUTION: A virtualization system includes a virtual host machine and at least one virtual guest machine. A seamless integrated server(431) is installed at the virtual host machine in order to provide seamless application integrated environment. A dynamic reconfiguration part(432) verifies weather a corresponding seamless integrated client(441) is installed at the virtual guest machine. Based on the verification result, the dynamic reconfiguration part installs the seamless integrated client to the virtual guest machine.