The Image Collection object offers an in-memory-cached collection of images for high-speed access. This allows images to be shared across a web application, conserving precious server resources, and accessed very quickly, improving your users' experience. Images can be added to the cache from a file on disk or from an ADO Recordset.

The Image Collection cache is not limited to image files. It can also be used as a very effective way to improve performance for any frequently served pages in your application.