If you've got many Gmail accounts and don't want to keep logging on and off them every time you switch, a simple command line parameter in the Google Talk shortcut can solve your problem.
First, create one copy of the Google Talk shortcut on your desktop – leave the original intact.
Right click on this shortcut and choose Properties. The Target box will show you the path of the EXE for Google Talk – something like "C:\Program Files\Google\Google Talk\googletalk.exe"
Change this to: "C:\Program Files\Google\Google Talk\googletalk.exe" /nomutexand click OK.
First, create one copy of the Google Talk shortcut on your desktop – leave the original intact.
Right click on this shortcut and choose Properties. The Target box will show you the path of the EXE for Google Talk – something like "C:\Program Files\Google\Google Talk\googletalk.exe"
Change this to: "C:\Program Files\Google\Google Talk\googletalk.exe" /nomutexand click OK.
You will now be able to run multiple instances of Google Talk with different identities for each.
Hey do u have several google talk accounts,wanna run multiple instances of google talk at once. catch it here>>.
Run google talk with the following switch: /nomutex
If you installed google talk to the default location, you can easily create a shortcut to this setting.
1. Right-click on the desktop
2. Select New
3. Select Shortcut
4. Paste this into the text box:
“c:\program files\google\google talk\googletalk.exe” /nomutex
5. Click Next
6. Namit whatever: Google Talk Multiple, etc.
7. Click OK until you are done.