Any Accurate O C R Programs in DOS I can run in Linux?

[Hart Larry]

Well, after not receiving any responses in another blind computer discussion 
list, I am wondering since I finally have my scanner working in Linux, are 
their any current or older OCR programs in DOS which I can run in Linux?  We 
tried several of the obvious straight Linux solutions, but none of them even 
came close to what I remember of Open book years ago.  Aside from an accuracy 
of scanning, we were able to put pages or books in lots of different ways on 
the glass.
I seem to remember in 1995 there was a straight DOS OCR which may have been 
created by a gentleman named Carter, which did a reasonable job.
Among the Linux OCRs we've tried,
ocrad         ocrfeeder     ocrfeeder-cli ocropus-0.4 
I am trying to install LIOS.
Thanks so much in advance for suggestion, including links
Hart