WinZip Computing does not have anything that can help with the recovery of lost Zip file passwords (.zip or .zipx). If weak, Zip 2.0 (Legacy) encryption was used, the best that can be suggested is that you search the internet for companies involved with recovery of passwords. Here are two sites of which we are aware.
Please note that WinZip Computing has not created any of the password recovery programs available from the above sites. WinZip Computing also does not offer support, advice, or recommendations regarding any of these programs.
If your Zip file was encrypted using AES encryption, we know of no reliable methods for recovering a lost password.