How Do I Recover A Lost Zip File Password?

 If you haven't already looked at it there's a couple of sources I'd recommend for this.

• John the ripper with the community jumbo patch supports zip cracking. If you look at the supported modes there are some options (including the basic brute-force) for cracking zip passwords.
  
• Elcomsoft has good zip password crackers including guaranteed recovery under some circumstances
  
• There are also some companies that appear to have GPU accelerated zip cracking, which could speed things up depending on your hardware. In terms of the approach, it sounds like a dictionary-based attack with mutation rules(so changing the dictionary with things like leet speak rules) would be the best bet, particularly if you've got the idea that the words would come from a specific domain. Straight brute-force would likely not be a good idea as it tends to top out around 8 characters (unless you're throwing a lot of CPU/GPU power at it)

Top 5 ZIP Password Cracker tools: With these useful pieces of software, you do not have to bother about losing your ZIP password or downloading encrypted ZIP files.

• Top 1. PassFab for ZIP
  
• Top 2. iSunshare ZIP Password Genius
  
• Top 3. Passper for ZIP
  
• Top 4. KRyLack ZIP Password Recovery
  
• Top 5. Top Password – ZIP Password Recovery