Can I distribute Xvid together with my proprietary program?
If your program calls Xvid functionality upon run-time its a derived work and hence, the terms of the GPL apply to the work as a whole including your program. So no, you cannot distribute Xvid together with your proprietary program then. If you want to distribute, youll have to publish your program under the GPL as well. That also requires e.g. the provision of the full apps source code. Refer to the GPL license text for more information.
