You'll require a brute force method. If you can remember roughly what the password may have been then certain software may be able to take it from there and expand on that.
However if you've used non dictionary words and / or numeric values then your only hope is to go for long term brute force, i.e. keep a decent cracking programme going for months.
I forgot a password to a zip file a while back and nothing I could find on the net could work out the password within 24hrs. Luckily I remembered what the password was (alpha and numeric). So good luck :)
However if you've used non dictionary words and / or numeric values then your only hope is to go for long term brute force, i.e. keep a decent cracking programme going for months.
I forgot a password to a zip file a while back and nothing I could find on the net could work out the password within 24hrs. Luckily I remembered what the password was (alpha and numeric). So good luck :)