So you've got a RAR file that's password protected, but you've forgotten the access key? Appnimi RAR Password Unlocker is the answer to your prayers!
Select the protected RAR file, a destination folder, and the minimum and maximum length of the password (the one you've forgotten). Then, choose whether to use a Brute Force Attack or a Dictionary analysis, and press Start.
Appnimi RAR Password Unlocker will try various passwords until it gets the correct one, and it will automatically extract the documents into the folder of your choice for free and without a password.