But have you opened the Start Up menu and un-checked that POS App or whatever it's called ?
I have a small Dell Optiplex atom (no real hard drive -- just a 1GB SSD) that runs Windows XP embedded. I want to use it for a POS application but it doesn't open the cash drawer like a normal PC. The POS application sends an ascii char '7' to the serial port and this opens the cash drawer for the current PC, but all I hear is a click when the Dell Optiplex sends the character '7'.
I know there's an electrical charge involved in the drawer opening, so I though perhaps the power supply is not strong enough. BUT -- when I boot the PC the cash drawer opens. So during boot the PC must be sending something to the serial port that is enough for it to open.
My question is -- how can I figure out what is being sent to the serial port at boot up so I can modify the POS application to send the same thing? (i tried boot logging but this doesn't tell me anything). Thanks in advance.

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