Updates the last modified date/time of a file. Extensibility point in the WiX XML Schema. Schema extensions can register additional elements at this point in the schema. Identifier for the touch file operation. If the identifier is not specified it will be generated. Path of the file to update. This value is formatted. Specifies whether or not the modified time of the file should be updated on install. If the OnInstall, OnReinstall and OnUninstall attributes are all absent the default is 'yes'. Specifies whether or not the modified time of the file should be updated on reinstall. If the OnInstall, OnReinstall and OnUninstall attributes are all absent the default is 'yes'. Specifies whether or not the modified time of the file should be updated on uninstall. If the OnInstall, OnReinstall and OnUninstall attributes are all absent the default is 'no'. Indicates the installation will succeed even if the modified time of the file cannot be updated. The default is 'no'. Extensibility point in the WiX XML Schema. Schema extensions can register additional attributes at this point in the schema.