Rich-media applications are designed and created via the Internet. A host computer system, containing processes for creating rich-media applications, is accessed from a remote user computer system via an Internet connection. User account information and rich-media component specifications are uploaded via the established Internet connection for a specific user account. Rich-media applications are created, deleted, or modified in a user account via the established Internet connection. Rich-media components are added to, modified in, or deleted from scenes of a rich-media application based on information contained in user requests. After creation, the rich-media application is viewed or saved on the host computer system, or downloaded to the user computer system via the established Internet connection. In addition, the host process monitors the available computer and network resources and determines the particular component, scene, and application versions, if multiple versions exist, that most closely match the available resources.