How can we refer function written in PB.net to PB classic CS application

Hello,

We are working on POC where in we have to use PB.net component to PB classic CS application.

Basic idea is to to retrieve a data in some datawindow and save it to some file suppose in PDF file.

So we have to connect the DB from Pb.net and retrieve the data in datawindow with some argument.

These all activity we have bundle in some .dll and then refer this .dll in PB classic application to perform this activity suppose in loop.

Any idea how can we achieve this?

We created a .dll but PB classic is unable to refer function written in it. Any specific approach do we have to follow?

Regards

Vikas