Shoutbox

Welcome to the forum,

Unfortunately the only way to decrypt it is to have the original password. There is no other way. Being able to decrypt an encrypted log without the password would defeat the purpose of it.

MSN Messenger might have logged this chat however. If you goto My Documents\My Recieved Files\

You may see a folder called History or a folder with your boyfriends email. You can try looking in there for the chatlog with his ex.