Microsoft’s Active Server Page (ASP) technology was used to create a web-based aerial photo map index application to enable customers to find and select a photo by map grid on the digital image archive server. An image viewer is used to display selected digital images and allows customers to adjust zoom scale and image size. Customers can also print or download the photo image using their web browser. Additional image viewers are also provided to enable the customer to better display, pan, and zoom about the photo image. DAPIS can be accessed by visiting the Montgomery County Government GIS web site.