How to run multiple Yahoo Messenger program from your computer? All you have to do is a little tweak at your Windows Registry System (Regedit), see the following steps :
* Start >> Run…>> regedit
* Access to HKEY_CURRENT_USER >> Software >> yahoo >> pager >> test
* On the right side, right click >> New >> DWORD value
* Fill the name with “Plural” and then press enter twice fill the value with “1″ (without quote)
If after you do all steps above and it’s still not work, try to logout from your current Yahoo Messenger and Exit, then try to run it again. If still not works, restart Windows or check your Windows registry, is that locked by your computer administrator? (Maybe for some security reason).
This Tips is also works with Yahoo Messenger Ver. 8.0.xxx,
Hope it can help You all..