If you are trying to unprotect password protected zip then you can do it in very little time by using eSoftTools Zip Password Recovery software as it provides 3 techniques to unprotect your zip password, Dictionary Attack, Mask Attack, and Brute Force Attack. You can unprotect zip passwords very quickly by using them. It is available in all versions and all Windows operating systems. So you can download this software demo version by clicking on the below link

INFO;-Extract password-protected ZIP