Description
fcrackzip searches each zipfile given for encrypted files and tries to guess the password. All files must be encrypted with the same password, the more files you provide, the better.

Marc Lehmann releases an Open source zip password cracker, but it only have source and a very old windows version 0.3, so I compiled it under MSys and MingW, you can download the last version(fcrackzip-1.0-win32.zip) now.
for more info about fcrackzip, please visit FCrackZip manual
or Marc Lehmann’s “FCrackZip”

if you need it, please do not hesitate to download it now.
if you want linux version or source code, please download it here(fcrackzip-1.0.tar.gz).

If you are using Microsoft Office XP or Microsoft Office 2003, you can change the view to HTML-Code using Microsoft Script Editor by pressing the Alt+Shift+F11 keys.

When the document is opened in the Microsoft Script Editor then search for “Password” and you will find something similar to this:
<w:DocumentProtection>ReadOnly</w:DocumentProtection>
<w:UnprotectPassword>9530C5F8</w:UnprotectPassword>

To remove the document’s form protection:
- remove the line containing ReadOnly and UnprotectPassword and then save the document using Ctrl+s, the protection should then be gone.