Multiple Yahoo Messanger IN the same PC : -

Multiple Yahoo Messanger IN the same PC (machine)
the steps for this trick are

Go to run.Type 'regedit'.

Go to HKEY_CURRENT_USER.

Double click 'softwares'.

Click on 'Yahoo'.

Then click on 'Pager'

Click on test. On the right panel,right click and create a DWORD value.

Name it as 'plural'. By double clicking,change the default value to 1