Figure out what to do next.
Karen created her own custom control for folder browsing in Directory Printer. Unfortunately, the control isn't designated as a tab stop, so tabbing around the form never lands there. This does break good Windows form design, which says all controls should be reachable without using a mouse. This also means that screen readers for the visually impaired don't read the browser, making Directory Printer useless for anybody who cannot see.
I noticed right away that the screen claims to afford the keyboard accelerator Alt-F to enter the browser, but Alt-F toggles one of the checkbox controls.
Orlando in this ticket wrote:
I am currently using Jaws for Windows version 2019, which is not free. But results are no better with Narrator or NVDA, which are free.
The problem is that Directory Printer has a child window where files and/or folders are selected. There is no way to enter this window with the keyboard or a simulated mouse because the window has no tab stop that any screen reader recognizes. Simply load Narrator and try to use any of its navigational commands to enter the file/folder selector child window. You will find it is impossible.