You must specify a shared folder to share ProStep EDMD data with an ECAD designer.
If you do not use email-based communication, the shared folder location must be available to you from the SOLIDWORKS software and to the ECAD designer from the ECAD application. If you use email-based communication, the shared folder is the location where you store your updated ProStep EDMD files before importing to or exporting from the CircuitWorks application.