Follow this guide for setting up IPinator SmartDNS on Windows 7

Click on the “Start” button, then click “Control Panel

Start, Control Panel.

Click on “Network and Internet”. Click on “Network and Sharing Center”.

Network and Internet

Click on “Change adapter settings”.

Click on Change adapter settings.

Right-click on the interface through which you are connected to the Internet and click “Properties”.

Right-click on the interface through which you are connected to the Internet and click “Properties”.

Click on “Internet Protocol Version 4 (TCP/IPv4)” and then click on the “Properties” button.

Click on the “Use the following DNS server addresses” radio button. Enter DNS Proxy IP address and click on the “OK” button.

Enter DNS Proxy IP address and click on the OK button.