I am currently running Pep 2.4.23.0 on Windows 10 without any issues. It handles 9400, 9600, and 9800. However, I am in need of a replacement for my 9800 as I accidentally spilled soup on it. I am currently drying it out in flower desiccant, hoping it will recover. In the meantime, I have a spare 9600 that I can use since I do not use info or back. I have seen some reasonably priced 9800 units on eBay for $385 plus $50 shipping, so I may consider purchasing one for $435 to have as a spare.