It's not working but thaks for your help. Bye.

But question. It can be done or give it up?

I try it with your patch and it the same: Serial1: Opening com1 Serial1: Errors occured: Framing 0, Parity 0, Overrun 10, Break 0 Serial1: Errors occured: Framing 0, Parity 0, Overrun 10, Break 0 I increase and decrease framing and cycles and it the same. I even change value of com1 in cmd and still …

I just saw your web page. Itry it with your's patch. 😉

I've change it for something like that: serial1=directserial realport:com1 But when i try to comunicate: Serial port at 3f8:Opening COM1 Serial port at 3f8:RX Overrun! It seems that XP is blocking that port. Maybe i do somethin wrong? 😀

I try it becuase i use this programs to programing Motorolla Radios, and it will be more comfortable to open that programs from windows. Once i drive to a client with my notebook and i forgot win98 start disc (i have winXP). Thats why i start digging. Maybe someone knows how to do this in Dos Box?

I have few programs wich use COM port to comunicate with other devices. Programs by it self works but don't comunicate over that port. The same programs work properly when i run them from win98 start disc. Maybe someone can help me. Thanks. 😁