To be able to use web applications that require PHP4 or PHP5, you can select the required PHP version for individual virtual directories.

To select PHP version for a virtual directory within a website:

1. Go to Websites & Domains and find the website’s domain name.
2. Click Virtual Directories.
3. Browse to the required directory and click a link with its name.
4. In the Tools group, click PHP Settings.
5. Select the required version of PHP and click OK.