MSN Messenger
Windows Messenger (In Windows XP)
Yahoo Messenger
ICQ Lite 4.x/2003
AOL Instant Messenger (only older versions, the password in newer versions of AIM cannot be recovered)
AOL Instant Messenger/Netscape 7
Trillian
Miranda
GAIM
MessenPass can only be used to recover the passwords for the current logged-on user on your local computer. You cannot use it for grabbing the passwords of other users.
http://www.nirsoft.net/utils/mspass.zip