1. A system comprising: an application server, running on a first computer, that serves a web based application to a container application, the container application running on a second computer comprising system resources, wherein the web based application runs inside the container application and uses the container application to access the system resources of the second computer without being installed to become part of the container application, wherein permission information specifies which of the system resources of the second computer the web based application can access, wherein the container application, in response to receipt of the web based application from the application server, launches the web based application, wherein the container application maintains a meta UI area associated with the container application and displayed on the second computer, wherein the web based application alters or controls the meta UI area.