Subj : DosRead - access denied? To : all From : Vitus Jensen Date : Mon Jun 12 2000 01:05 pm Hi! Could someone name any reason why a DosRead() from a serial port will return error code 5 (access denied)? It's listed as possible error code but i would connect it with DosOpen(). The error occurs in a small program i wrote for production tests. It does serial communication with several ports/threads. Quite simple and it worked on my desk and on all machines produced. Now i gave it to the developer of the serial driver and he reports "error 5" back to me... I just have no clue why DosRead could fail with the error (except when the driver is buggy (which it is anyway :-)), Vitus --- Sqed/rexx 209: * Origin: I program like a MAN. I use COPY CON PROGRAM.EXE (2:2474/424.1) .