The following trick describes how to do multiple login to Yahoomail without using any software:
- Go to Start —-> Run. Type regedit without the quote, and then enter.
- Navigate to HKEY_CURRENT_USER ——–> Software —>Yahoo —–>Pager—->Test
- Right-click the Test and choose new Dword value
- Rename it as Plural on right page
- Double click on it, select decimal and write 1 in the value box
Now close registry and restart yahoo messenger and try multiple login.