ADD Path on Windows 7

http://www.itechtalk.com/thread3595.html

Go to Start, Right click on PC and properties
Then Advanced Settings and down click on the "Environment Variables..." button.

On the PATH option for the local user and the system, add the path as

;C:\path1\path2\path3\

Reboot and then on the cmd.exe try the command
path

to see the paths of the Windows