ImageGear .NET v25.0 - Updated
Configuring ImageDataProviders in Web.Config
User Guide > How to Work with... > Common Operations > Viewing > Viewing Using ASP.NET > [Legacy] ASP.NET Web.Config Editor Application > Use the Web Configuration Categories Screen > Configuring and Working with Data Providers > Image Data Providers > Configuring ImageDataProviders in Web.Config

See the Image Data Provider Configuration section for details on how to modify web.config settings to enable your ImageDataProviders.