You can download the PI Crop View Focus here:
Select Crop View focus app and download it.
Open the crop view focus app.rar in your download area
Click with you right mousekey and select "Extract files..."
Search for the folder you want to extract the PI CropView Focus test to.
Then click "OK"
Open your chosen path and install PI CropView Focus test. The application will guide you through the installation process.
Search for the folder you installed the PI CropView Focus test to.
Click for opening PI CropView Focus test.
Now you are ready to focus your camera.