Native Application Toolkit replacement in CC 9.1

Hi All

I hope this is in the right forum.

I have dialogs written with Extension builder 2.1, targeting CS5 to CC.

I just update CC to 9.1 and the NativeApplicationToolkit does not work anymore.

I have found the replacement  for the DispatchEvent method with ICSXSPlugPlugEventHandler, but I am also using the functions ‘PlugPlugErrorCode LoadExtension(const char* inExtensionID)’ and ‘PlugPlugErrorCode UnloadExtension(const char* inExtensionID)’.

So My Question is What are the replacement for these two calls(LoadExtension and UnloadExtension) in the InDesign CC SDK?

Thanks for the help