Run More than one yahoo messenger in same computer

In my previous post i posted a trick of running multiple gtalk. Now i am posting a trick of running multiple yahoo messenger. You can login with multiple id's on yahoo messenger without any download or patch. Only thing you have to do is a change in windows registry.
Follow these steps :

1.   click on 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 done!!
Now close registry and restart yahoo messenger and enjoy multiple login..
:)