There is a thread on this forum from 2011 regarding the source code to DUP.SYS of the 2.0S DOS. I guess it was in the manual in the photo below. I'm not able to find that manual anywhere. Would anyone here happen to have a scanned copy they can upload?
There are 2 text files in that thread that is supposed to be DUP.SYS, however, the last poster is questioning whether some of it is missing from the posted text files.
Any assistance is appreciated!
