
Simple & easy steps to login to yahoo messenger with multiple user id’s without using any additional software :
1. Go to Start -> Run , Type regedit, then enter .
2.Navigate to HKEY_CURRENT_USER -> Software -> yahoo -> pager ->Test
3.On the right page , right-click and choose new Dword value .
4.Rename it as Plural.
5.Double click and assign a decimal value of 1.
its Ok ,your done ,close registry and restart Yahoo! Messenger And Enjoy the multiple login.
Find your Yahoo! Friends Status

Nice info.. thanks
add a warning too… because playing inside registry is little bit risky…
Just fun…
I never knew this before…. thanks
ok i will try…. hope it work…
Lol nice hack but now I don’t use yahoo chat anymore . It remembers me old days when I used to boot my friends from different id and jaam pc systems …
I have try this way and it work like charm.
interesting page