In the Creo Parametric HTML client, you can enable support for custom parts, which extend wt.part.WTPart; however, a custom part must be modeled before any changes are made to the Creo Parametric HTML client. (For more information on extending the Windchill object model, see the Windchill Specialized Administration Guide.)

The Creo Parametric HTML client permits use of custom parts in most operations, including download, check out, check in, associate, disassociate, and so on; however, the operations used to create parts, New > Part and Auto Associate Part, are specific to WTPart. Additionally, when you view the properties of a custom part, any global attributes you may have added to the custom part can be seen; however, newly modeled information is not displayed.

Whenever "Part" is available in the object type list on the Creo Parametric HTML client object selection page, if "Part" or "All" is selected, both WTPart objects and custom part objects are listed in the page’s results table.

Automatic part generation is supported through the “Auto Associate Part” action available on the workspace properties page. To enable automatic custom part generation when using this command, however, you must either create or modify your automatic part creator. For more information, see Customizing Auto Associate.