Unpaid Internship/Academic Credit

<p>If an internship is unpaid and offers academic credit, am I REQUIRED to register for an internship course at my university? I'm curious because a lot of the summer internships I'm looking at are unpaid, which means I'd have to pay an extra $2000 to enroll in a class at my college. (not to mention that a couple are out of state...so I can't exactly attend class in person)</p>