Can I use Pd with plugins?
Yes. Pd works well with LADSPA, DSSI and VST plugins (not DirectX plugins, however). You’ll need to download and install a separate [plugin~] object or the [dssi~] object for DSSI plugins. . Also, it is impossible to use Pd as a plugin itself, at this time, but there are number of people working on this, including using Pd as a browser plugin. As of Pd 0.43, you can also customize the Pd’s GUI using plugins.