Login into Two / Multiple Yahoo Messengers at a time

You can login with multiple ID's on the same yahoo messenger.
Follow these steps :
* Go to Start --> Run --> Type regedit,hit enter
* Go to HKEY_CURRENT_USER --> Software--> Yahoo --> pager -->Test
* On the right pane --> right-click and choose new Dword value .
* Rename it as Plural.
* Double click and assign a decimal value of 1.
* Now close registry and restart yahoo messenger.
* For signing in with new id open another messenger