Because I haven't released an official new installer for a while, but development did continue. I believe there was an issue running that version fot the first time and believe I did update the installer but not sure I updated the zip file.... too long ago, The issue wast that some of the required tables are build initially at first start of tidy based on the autoit3 configfile present. Could it be it only shows a lot of debug message in the console the first time ran?
If not i require a FILE to test with, not a cut & paste of the code, as the file contains the specific encoding! You could also simply download the lastest version of Tidy here and try that.