0 OPEN MULTIPLE YAHOO MESSENGERS

                    

STEP:1

Open run window (CTRL + R). and just type  regedit  then click enter.

STEP:2

New window will open as shown below.Collapse HKEY_CURRENT_USER  then Software.

STEP:3
Collapse "Yahoo" and then "pager" and you can see a category under "pager" called  "Test".

STEP:4

Right-Click on "Test" and select New -> DWORD(32 bit) value.

 As shown bellow a new file will be created (New Value #1)

STEP:5

Rename "New Value #1" to "plural"

STEP:6

Once you have renamed the file. Open that file (plural). and change the "Value data " value from 0 to 1 (initially its value will be 0 ). and click OK.

Thats all. You are done. Now you can open more than one yahoo messenger at a time and login with different IDs. ;)