Can hotmail mesenger conect with yahoo mesenger?

Yes. Both the latest version of yahoo messenger and the new version of msn, which is the live messenger can connect with each other. If you're using msn and you want to connect with a yahoo user, just click add and type in the email address of the person you want to add. The same goes to yahoo%26lt;-%26gt;msn, just click add, then key-in the email add and on the drop down menu beside, choose live messenger. Good luck!