Software can be automatically distributed in stages. An administrator can specify a stage indicating software to be distributed to nodes in a network. The nodes can be organized into groups. Administration functions can be performed via an application service provider scenario. For example, a browser-based user interface can be used to configure nodes and indicate an appropriate software stage for the nodes. Agent software at a node can query a data center to discover what software is appropriate. Software of the proper stage can be provided and installed. The software can be provided via an application service provider scenario, and automatic installation can be achieved even if the nodes are behind a firewall. A versionless arrangement can be implemented.