JSLint.NET is configured on per project basis. Right click on your project and you should see a menu choice for JSLint.NET Project Settings.
You can see an example of this on the Visual Studio gallery page for the extension.
Question
I am new to VS. Went to Extensions and installed JSLint.NET, it is also enabled. But I get no item under Tools to configure or use it?
Solution
JSLint.NET is configured on per project basis. Right click on your project and you should see a menu choice for JSLint.NET Project Settings.
You can see an example of this on the Visual Studio gallery page for the extension.