I see you are looking in devils "programs to crack passwords messenger"Although to this day no one has managed to create such a program (and do not want to show this!). I explained many, many posts and comments here and on ymvista.com, That such a thing exists ... no passwords cracked software, nor any method. No results. I post stuff like "Programs to crack passwords, IDs, Messenger - WARNING!"They say quite clearly that such a thing does not exist and even if there would be a treasure for mankind (so we buried That program!) And they .. require IDs and passwords to break passwords methods.
I would suggest to www.google.ro, Make a filter "Program * broken * password *" Search for these words .... who was being sent to sites "EDU" or ... Mars :).
For that really want to try, there is still a way to crack the password of Yahoo. It is a disposable method.
Hacked password method Yahoo! . : Try to get hammered in the monitor in the box where you put the password ... can break it.
* I guarantee that after cracking the password, account or Yahoo! Y! M will be visible. No. .. on that monitor ... at least ...