Identifies the parent File as a types XML file for the referenced PowerShell snap-in. A types XML file used by the extensible type system. Extensibility point in the WiX XML Schema. Schema extensions can register additional elements at this point in the schema. Reference to the types File ID. This is required when nested under the SnapIn element. Reference to the PowerShell snap-in ID for which this types file is associated. This is required when nested under the File element. Extensibility point in the WiX XML Schema. Schema extensions can register additional attributes at this point in the schema.