Opening Chrome From Command Line
Have a look into the start
command. It should do what you're trying to achieve.
Also, you might be able to leave out path to chrome. The following works on Windows 7:
start chrome "site1.com" "site2.com"
Use the start command as follows.
start "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" http://www.google.com
It will be better to close chrome instances before you open a new one. You can do that as follows:
taskkill /IM chrome.exe
start "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" http://www.google.com
That'll work for you.