Yes, we provide a tool in the control panel to specify custom error pages for 404 (File not found) and 500 (Internal server error) errors.
When enabled, custom error pages are displayed rather that the generic error displayed by the web server. The use of custom error pages allows you to maintain your site design while displaying server errors to your site visitors.
To specify the path to a custom error file, go the IIS Manager in control panel and click the "Custom Error" tab.