An invention is disclosed for a computer protocol that facilitates provisioning services to client devices. The computer protocol includes discovery transactions that allow a client device to retrieve information regarding services available to the client device from a provisioning server. A service comprises a plurality of content files capable of being installed on the client device. The computer protocol also includes subscription transactions that allow the client device to manage content in service directories. A service directory comprises a plurality of services. Further included in the computer protocol are delivery transactions that allow the client device to downloading of data related to services.