How to save proprietary data into CAD files?

[Kittychen]

Our Toolkit or Web.Link plugin program need to save some data among different revisions. The data better goes with CAD files .drw .prt or .asm. Is this possible? 

[Kittychen · Accepted solution]

Core: External Data

This section describes how to store and retrieve external data. External data is a Creo Parametric TOOLKIT application to be stored in the Creo Parametric database in a way that is invisible to the Creo Parametric user.