"Save source as" from desktop API

Hi,

is it possible to generate the edited source file and save it to the disk from 3rd party applications using the API of Studio?

I have found only this: http://producthelp.sdl.com/SDK/StudioIntegrationApi/4.0/html/4f26373b-ef09-26bf-c727-49100ea7476d.htm , but I can use such classes only from plugins, not from separate applications.

regards,

Tamas