Open the site folder with WebMatrix:
- If this is the first time, select Open from the start-up page, then select Open Folder.
- The search page requires PHP and it will detect if PHP is not installed, and ask if you want to install the dependencies.
- Otherwise, select site from My Sites on the start-up page.
- Click on the Run icon (in the top left corner) to launch the site using IISExpress.