You can configure iCon for your application in VisualStudio as per the below steps;
1. Right click on the project to bring up the context menu. Now select "Properties".
2. In the projects property window select "Application".
3. There is one entry that says "Icon and manifest".
4. Right beside the textbox for the Icon is a button, which will bring up a file browser dialog.
5. Click on that button and select your icon file.