TO USE MANY NUMBER OF YAHOO MESSENGERS AT A TIME WITHOUT NEED OF SOFTWARE 
GO TO START MENU ACTUALLY SITUATED ON LEFT BOTTOM ON EVERY ONES PC 
THEN CLICK ON RUN 
TYPE CMD PRESS ENTER COMMAND PROMPT WILL OPEN 
IN COMMAND PROMT TYPE REGEDIT AND PRESS ENTER THEN REGISTRY EDITOR WILL OPEN 
IN REGISTRY EDITOR 
CLICK ON + SYMBOL NEAR HKEY_CURRENT_USER
THEN THE FOLDERS UNDER HKEY_CURRENT_USER WILL BE SHOWN
NOW CLICK ON + SYMBOL NEAR SOFTWARE 
THEN FOLDERS UNDER SOFTWARE WILL BE SHOWN 
THERE U ILL FIND A FOLDER NAMED YAHOO NOW CLICK ON + SYMBOL B4 IT
THEN U ILL FIND A FOLDER NAMED PAGER CLICK THE+ SYMBOL B4 IT 
THEN UILL FIND A FOLDER NAMED TEST CLICK ON IT 
ON THE RIGHT SIDE OF THE REGISTRY EDITOR UILL FIND A REGISTRY ENTRY NAMED DEFAULT 
NOW BELOW IT RITE CLICK UR MOUSE SELECT NEW >> SELECT DWORD VALUE>> NAME IT AS PLURAL 
NOW CLICK ON NEW REGISTRY ENTRY CREATED BY U AND NAMED AS PLURAL IT WILL ASK FOR A VALUE GIVE IT 5 
OR ANY NUMBER DEPENDS ON HOW MANY YAHOO MESSENGERS U WANNA USE AT A TIME 
CLOSE THE REGISTRY EDITOR AND CLICK ON YAHOO ICON AND U CAN OPEN ANY NUMBER OF YAHOO IDS AT ONCE...