SaveScan

SaveScan exists to receive a scan from a TWAIN source and immediately save it to a sequentially numbered file.
When the TWAIN standard was set up, the desktop computer didnt have enough power to both scan and edit photos at the same time. You typically would scan an image, shut TWAIN down, and then edit and work with the image.
Opening a TWAIN device in a photo application paralyzed the photo application while TWAIN was open.
Modern (2004) computers have more than enough power to scan and edit simultaneously, and many modern scanners can do batch scanning. Some scanner applications keep data in RAM until you save it manually.
This isnt as safe as saving each scan as it is performed. I like data to be saved on the hard drive as it comes in, as automatically as possible, including automatic file naming.
It allows you to have a TWAIN device working without tying up a more elaborate piece of software and large quantities of your computers resources. It receives multiple scans for batch scanning.
SaveScan can save to three popular types of files and you can easilychange file names and folders while you are scanning. And, its freeware.