You can login with multiple id's on the same Yahoo! messenger without any download or patch .

Follow these steps :

1. Go to Start ---- Run . Type regedit, then enter .


2.Navigate to HKEY_CURRENT_USER -------- Software --- Yahoo! -----pager----Test


3.On the right pane , right-click and choose new Dword value .


4.Rename it as Plural.


5.Double click and assign a decimal value of 1.



That's it done..!!