Client is using a very old DOS program that I can not get to directly print. I can get it to write out to a txt file though. I know about PrintFile but it will only print the file once and won't print again if the txt file gets updated.
This is a long shot but the DOS program I am working with is TeleMagic v14. If you know how to get usb/parallel printer to print while running win 7 that would take care of the problem as well.