Seen various people having problems with pass protected archives, so hope this helps.

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RPC
RAR Password Cracker v4.12
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Overview:
This program is intended to recover lost passwords for RAR/WinRAR archives
of versions 2.xx and 3.xx. The program finds by the method of exhaustive
search all possible combinations of characters ("bruteforce" method), or
using passwords from lists ("wordlist" or "dictionary" method).
Self-extracting archives and multivolume archives are supported. The program
is able to save a current state (you can interrupt the program at any time,
and restart from the same state later). Estimated time calculator allows you
to configure the program more carefully.

System Requirements:
RAR Password Cracker requires Windows 9x/ME/NT4/2000/XP. There are no
special requirements for memory capacity, but the processor performance
should be as high as possible. Special hardware is not required.

Download:
http://rapidshare.com/files/92621409/WinRAR_Password_Cracker_4.12.rar
Link checked on Thu Feb 21, 2008 4:12 pm [WBB_Linkchecker_Bot]