1. The app can automatically detect the latest version of your Autodesk® AutoCAD® Plant 3D and the location of your content folder, the best is to leave it as the default suggest location. Normally the location of the catalog will be here: "C:\AutoCAD Plant 3D 202X Content\CPak DIN 11850 fittings valves Python catalog - Metric".

2. Run AutoCAD Plant 3D and run the command "PLANTREGISTERCUSTOMSCRIPTS" to compile the scripts and restart Plant 3D.

3. Create a new spec and add all components from the catalog to the spec or use the existing spec and copy to your project. 

Catalog support folder exists in this location:

• Windows 7/8.1/10/11: C:\AutoCAD Plant 3D 202X Content\CPak DIN 11850 fittings valves Python catalog - Metric

To uninstall this content pack, please go to Control Panel => Programs and Features => select the "DIN 11850 fittings valves Python catalog - Metric" => Uninstall