Answer : SimpleOCR is designed to be a very basic OCR software that can only convert BMP, JPG, and TIF images to text. SimpleOCR can scan multi-page files, but has no other batch processing capabilities. Because it is freeware, no support is provided for SimpleOCR.
If you would like an OCR software that can batch scan, please check out one of these commercial OCR applications and servers. Most of these have demos that you can try before purchasing.