Help & Tutorial

The Swiss consulting company Objectif Sécurité, creator of the Ophcrack program, are the most valuable to deliver a professional help regarding Ophcrack.

Ophcrack home page at École polytechnique fédérale de Lausanne is a helpful link too.

A Tutorial made py About.com can provide an useful assistance too.

And video assistance is valuable too:

How to recover lost passwords with Ophcrack