Patent attributes
Techniques are described for managing software whose use is restricted in one or more manners. In some situations, the software components are fee-based components that are made available by providers of the components for use by others in exchange for fees defined by the components providers, and the software components may also have various other non-price conditions related to their use. The described techniques facilitate use of a software component on a computing node by configuring a virtual computer port or other virtual interface on the computing node, to enable the software component to make a request via the provided virtual interface regarding whether a current use of the software component is authorized. A trusted source receives and responds to the use authorization request in a manner configured by the provider of the software component, such as by a node manager module of a program execution service.
