To create a patch file for JR Typing Tutor 9.3.3, you will need:
The JR Typing Tutor 9.3 patch file, which we'll refer to as jr_typing_tutor_9.3_patch.txt , contains a series of changes to be applied to the software. The file is approximately 10KB in size and consists of over 200 lines of text.
In some versions, the patch also disables direct screen writes to CGA ports that cause modern GPUs to misinterpret the signal, replacing them with standard VGA text mode calls.