However google talk never allow you to sign in with different user name for another gmail account. So in that case you have to log out then log in with your another gmail account. Actually if you do so it might heart you for log out from your existing account and sign in with another user name. why because may be you have to chat with your friends or client who know only that account. I mean you never add them in your other gmail account. Sound not good. You might be looking for solution for this problem. You like to sign in with all your gmail account and like to chat with all your friends. So what i like to say here that is it possible for you to use multiple google talk messenger in the same desktop? Yeah by doing a simple hack you can do that. Its very simple trick which you need to apply for open more than one google talk in same time. Here i am giving the solution. I have two gmail account and by applying this method i can chat with my friends or client with both account in same desktop.
Now check here
How to use google Talk with Multiple User name In a Same Desktop
First of all what you have to do is just go to your program menu and find google talk .
Right click on it and select send to desktop create shortcut
After having google talk in desktop right click on it again then select properties.
Now here is the main task find the google talk.exe from target box on this line you need to add /nomutex make sure that there is a space between startmenu and /nomutex . You can follow this way
Go to Target and copy the line of code then open a notepad just paste it on the notepad now you will need to add /nomutex add it after giving space then copy the code and replace with existing one. Check this picture below:
add /nomutex at the end of the line, for example:
C:\Program Files\Google\Google Talk\googletalk.exe” /startmenu /nomutex As below picture
From now you can open more than one google talk messenger as much as you want by just clicking one the desktop shortcut icon. After apply this trick i am using two gmail account for chat. Here is the picture below:
That's it. If you have any problem to doing this just comment .