How to use multiple yahoo messenger in same PC desktop

Use multiple yahoo messenger 
no software required

1.  Click on "Run"
2.  Type "Regedit" and press "Enter"
3.  Extend "Hkey current users"
4.  Extend "Software"
5.  Go down and extend "Yahoo"
6.  Extend "Pager"
7.  Right click on "Test"
8.  Click on "New" "Dword (32 bit) value"
9.  Type "Plural" 
10.  Right click on "Plural" and click on "Modify"
11.  In value data type "1"
12.  Click on "OK"

More more detail see this video.... please share and subscribe