Guaranteed Word 972000 Decryptor (GuaWord 1-client Windows) Description:

This is an utility to decrypt encrypted MS Word (.doc) files with password for opening. Any file, encrypted with ANY password (no matter what length of the password is or what language or symbols used, etc) can be decrypted with guarantee. It will take about one month weeks in average (70 days maximum) using one Pentium II/333. This is a command-line utility.
Please note there are other versions of this program.
Look at http://www.password-crackers.com/crack/guaword.html
for more info.