Thanks for the replies. It's not actually a game, but a Pascal program which works with a hardware interface on the parallel port. It has been working with v.70 and Porttalk for years, but I had completely forgotten that it used a patched version of DosBox.

Is it possible to use Porttalk for access to the parallel port with version 0.73?

Thanks, that works fine!

When I switch DosBox to full-screen mode the monitor goes blank and reports no signal. When I switch back I have to wait for the desktop to be redrawn. I have tried various settings in config with no success. Can anyone help, please?

I just added the Freedos keyboard.sys file and modified the dosbox.conf file to suit. This worked perfectly for me.

It would also be helpful to know what is in the three different .sys files available. Keyboard.sys worked for me, but presumably keyboard2.sys and keyboard3.sys are needed for something? The link at the bottom of the site did not work for me, but there is one near the start of the page which did. I …

Thanks wd - I had the keyboard.sys file in the wrong directory!!

I want to change the DOSBox keyboard layout to uk but cannot find a uk.kl file and do not understand how to create one. I can find a Freedos keyboard.sys file but have no idea what to do with it and would welcome some advice. OS is W98SE.

That's interesting wd. Can you point me towards some information about how to do this? I don't have the source code, just the executable file.

It wouldn't be if run 200 errors did not exist!

Thanks h-a-l-9000, that seems to have solved all my problems.

I am running DOSBox under Windows 98SE, and have had no luck trying to use a couple of programs which interface with hardware connected to the parallel port LPT1. Windows sees the port normally, but programs running in DOSBox do not seem to communicate with the port correctly. Is there anything I …