I have just purchased File View Pro on Order No32830825 and the activation code is not being accepted.
My computer is a late model Dell with Windows operating system.
I have tested the application with the code you have provided and indeed it gives an error. You will have to contact the developers of the application to see exactly where is the problem with the code. If you've purchased the application and the serial key expired, I believe that a new one will be provided to you. Access the contact page and get in touch with them explaining what is the problem.