Follow the given steps to change the yahoo messenger registry value:
*
Click Start button and type regedit in Run option then press Enter for next.

Here locate the location to:
HKEY_CURRENT_USER/Software/Yahoo/Pager/Test

Here in right side panel, right click to create a new Dword value with name Plural and give it value 1

#
Now close the registry editor and restart your computer after any changes to go into effect.
# For signing in with new YAHOO ID open another messenger open as many messengers you need.
# If you want to disable the multiple messenger option then again open registry editor and change Plural value 1 to 0.

3 comments:
Thank you for this quick tip, it was helpful because I usually want to open two Yahoo accounts and I had to logout and log on again!!
December 28, 2009 4:45 PMSuperb
January 1, 2010 11:29 AMthanks a lot it worked!!!!!
January 20, 2010 11:38 PMPost a Comment