I don't believe that the access data tool dna is capable of more then bruting 40-bit RC2/RC4 keys.
I don't believe it will do anything for an AES encrypted block since the minimum block size it 128 bits.
The access data website also fails to mention support for anything that is AES capable.
A better approach as of now for messing with AES would be a side channel attack. Take a look at Bruce Schneier for more info.
I would highly recommend the book Secrets and Lies by the above if you ever get the chance.