Follow the below steps to login to multiple Gtalk usenames:
1. Go to your desktop and right click on Google Talk shortcut icon.
2. You can see the target path as “C:\Program Files\Google\Google Talk\googletalk.exe”
3. Simply add /nomutex at the end of that path.
4. Final Gtalk path should be “c:\program files\google\google talk\googletalk.exe” /nomutex
5. Now you can click on this Gtalk shortcut on your desktop as many times as you want. Each time you click on it, it will open a new window and will allow you to login with different login names at the same time.
6. You are done.
If you don’t have a Gtalk shortcut on your desktop, but want to do this Gtalk trick, you can navigate Right click on your desktop >> New >> Shortcut. Type “c:\program files\google\google talk\googletalk.exe” /nomutex in the shortcut field, and it will automatically make an multi login Gtalk username for you.
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