Run multiple Yahoo messengers

Yahoo messenger has a hidden function that let you run multiple Yahoo messengers at the same time. Simply follow the steps given below to activate this function.

1. Go to Start->Run, type in ‘regedit’ and press Enter.
2. On the left panel, navigate to ‘HKEY_CURRENT_USER\Software\Yahoo\Pager\Test’.
3. In the right pane, right click your mouse, choose New->DOWRD Value. Name it as ‘Plural’.
4. Double click the the Plural you created, in the pop-up window, set it to "1 (decimal)".

Now, you should be able to run multiple instances of Yahoo messengers using your different Yahoo accounts.