Describes a component search. Extensibility point in the WiX XML Schema. Schema extensions can register additional elements at this point in the schema. Component to search for. Optional ProductCode to determine if the component is installed. Rather than saving the matching key path into the variable, a ComponentSearch can save an attribute of the component instead. Saves the parent directory for the component's file key path; other types of key path are returned unmodified. Saves the key path of the component if installed. This is the default. Saves the state of the component: absent (2), locally installed (3), will run from source (4), or installed in default location (either local or from source) (5) Extensibility point in the WiX XML Schema. Schema extensions can register additional attributes at this point in the schema.