Migrating plug-in preset data between different formats

[ans]

I’m looking for a way to swap the format of a hosted plug-in after the fact (to enable DAWproject export which is currently VST3 only). Is there a way to migrate the preset state? This thread a while ago was about preset files, which are obviously very different for each format.

AU and VST Cross platform

I saved a file on OSX with the pluginHost demo and tried to open the file on a Windows machine (VST). It did not work. The file was saved using an AudioUnit, Kontakt 5. How would one do this? I was able to change the PluginDescription to correctly load the plugin. The problem is that the AudioUnit header needs to be converted to the Ccnk data and of course vice versa going the other way. Anybody know how to do this?

I have some hope that the raw data used for get/setStateInformation() may offer a path that doesn’t require reverse engineering of individual plug-ins (which is unsustainable).

Has anyone tried this with success?