T1CFreeImage is a simple ATL component that creates PNG images on the fly. It draws lines and texts with a selected color and saves the rendered image to a file.
WebTWAIN II is an ActiveX control that primarliy provides for image aquisition from a TWAIN source. It was specifically designed to be used in combination with an image uploading Webpage and provides additional functionality to accomplish this.
AutoImageInfo is a free web server component which queries the properties about image files in Active Server Pages (asp) or the _.NET(ASP) framework. Get information such as image width, height, file size, last modified time.