We have a VB6 app which communicates to our data logger box via serial RS232 connection at 9600 Baud. It works reliably until a user with Chinese XP operating system tries to use it. I assume it has to do with the character set being different, or something else I do not understand. I need someone experienced with serial communications and who has done both on and English XP and Chinese XP operating system to write a bit of code showing the difference. Then I can incorporate the difference into our app, send to Taiwan and see that the problem is corrected.