The program is designated to recover passwords for following types of hashes:
MySQL
MySQL5
MD4
MD4 (Base64)
MD4 (HMAC)
MD5
MD5 (Base64)
MD5 (HMAC)
MD5 (Unix)
MD5 (APR)
SHA-1
SHA-1 (Base64)
SHA-1 (HMAC)

As well as for hashes used by various PHP-programs:
md5(md5($pass))
md5(md5($pass).$salt)
md5(md5($salt).md5($pass))