I apologize for the naivety of this question, I've some programming experience, but none writing drivers.
We have an older HP DesignJet 5000ps plotter. The only Windows 7 driver we were able to find for it is in Chinese... which works ok until we need to change the settings (there was an employee who spoke Mandarin, but he/she left).
I'm assuming, for the driver to work with windows properly, the source code is in English and simply the user interface is in Mandarin, so if I could access it, it would be a matter of changing the output for the various display options.
Thank you for your time.