Hi @thomas.looney ,
Civil 3D contains Microdrainage Utility for Civil 3D, which in general provides the ability for Autodesk® Civil 3D® Pipe Networks to be renamed and exported to MDX/SWS/FWS format for analysis within the MicroDrainage System 1 drainage design module and then imported to update the pipe network in Autodesk Civil 3D to create a 3D model of drainage network as well as product plans, sections and pipe and structure schedules.
Please see:
and blog:
Regarding WinDes Microdrainage functionality please contact with https://www.innovyze.com/en-us/products/microdrainage
However, I did some research and found this tutorial Introduction to MicroDrainage
Thanks,
Wojtek
Wojtek G.
Product Owner for Civil 3D
Civil Engineering Solutions