Below are the steps to do multiple windows messenger login on same computer :
- Run Registry Editor (regedit)
- Navigate to the following registry key:
KEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Live\Messenge
- 3. For 64-bit (x64) OS, go to following registry branch instead:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Live\Messenger
- In the right pane, right click on any blank space
- Select New on context menu, and then click on DWORD (32-bit) Value.
- Name the new registry value entry as MultipleInstances.)
- Modify the MultipleInstances and set its value data as 1
- Start as many Windows Live Messenger windows as you want from Start Menu.
