In 99% of cases, The archive is empty or filled with garbage data. The password is merely the carrot on the stick to get you to visit their ad-filled website.

A: The password is wrong, or one of the .rar parts is corrupted. Download missing parts again.

Trying passwords like CODEX , RELOADED , FLT , or CPY . Those are different groups. Using the wrong password will give you a CRC error or a "wrong password" prompt.

Here's an interesting, slightly satirical review written in the style of a disgruntled (but amused) user:

Some aggressive antivirus programs scan inside archives. Password protection can sometimes bypass superficial scans—though modern AVs have caught on.