simple command line app to change windows gateway IP address for eth1 windows 7 64bit

We need a simple windows command line app that when we run it, it will switch the existing static gateway IP address from [login to view URL] to 192.168.2.1. If clicked again, it will switch it back to 192.168.2.3. when it is ran, it will show the message "Please wait switching to Line 1 [login to view URL]" The app will have a simple config file with the following content ====================================================== mac:45ed45aeercxc [login to view URL] "Please wait switching to Line 1 [login to view URL]" [login to view URL] "Please wait switching to Line 2 [login to view URL]" [login to view URL] "Please wait switching to Line 3 [login to view URL]" Every time the app is ran, it will roll over to the next gateway IP address. For example if there is only two item listed, it will switch back forth between the two gateways. Incase the computer has two network cards, and we need to specify which network card to target, i added a field to the config file called "mac" if the mac address is specifies, the app should target that specific network with the matching mac address. Note the mac address should not be required to run. That's It! simple app. 2-4 hours job