Difference in conversion example desktop c # e url

Dear, I am novice here and beginning the understanding of OCR I came across the following error, when testing the example proposed in C # the conversion brought some wrong information, when I am on the conversion page it works normally bringing all the information converted correct,
Is there a difference in the dll for these two items ???
I only get results if I use the web API ???
Thank you for your attention.

Please see Difference between online OCR and OCR API?