OCR doesn't work
Win 7 issue
Try item #1 from the following link: http://capture2text.sourceforge.net/#troubleshooting
Continuous OCR on command line
This is better suited to a script. See Ticket #3.
Capture2Text cannot seem to read particular single letters
This is a somewhat more involved issue than you may have imagined. Will probably require some kind of automatic "spellcheck"-like feature to correct.
In the readme that came with v3.9, search for "How to Run Capture2Text from Source Code".