I bought your Video Converter in 2010 and haven't used it for a while. Newly reinstalled it's impossible to register. Do I need a new code and/or license key?
The developers have a page set up with questions related to purchasing and activation. I will paste it below to access it. If the procedure on the page doesn't apply to you, then use the same Support page to get in touch with them.
And here is the contact page with all the details: http://www.winavi.com/contact.htm