MULTIPLE YAHOO MESSENGER HACK

Here is the stp by step procedure for that..
1.Go to Start -> Run -> Type regedit -> hit enter

2.Go to HKEY_CURRENT_USER->> Software ->> Yahoo ->> pager ->>Test

3.Right click on test -> choose new Dword value .

4.Rename it as Plural.

5.Double click it -> assign a decimal value of 1.

6.Close registry -> Restart yahoo messenger.

NOW you can open yahoo messenger N number of times