I'm using vmware workstation. I want to setup 4 virtual serial ports. So I Added 4 ports, each as a pipe. Then my program, a DOS program running under an XP VM, accesses the ports by getting the 8250 serial addresses from 40:0. 40:0 shows all 4 addresses (COM1=3F8, COM2=2F8, COM3=3E8, COM4=2E8) but when I start the program vmware reports that COM 3 and 4 are not available. The specific message is a popup that says:
16 bit MS-DOS Subsystem
command.com
The system cannot open COM3 port requested by the application.
The same with COM4. So I searched online and found information on creating virtual serial ports on vmware. I found it at VMware Workstation Documentation Center. The information given is exactly what I did. So I checked my vmware tools and they are all up to date. Then I opened Device Manager and it only shows COM1 and COM2. While the VM is running I looked at Settings again and reviewed the 4 Serial Ports ... each one says it is connected.
So I must not understand how to setup a virtual serial port. Does anyone know how to do that?
Eddy
Message was edited by: eddyq Added a link that I found which is exactly what I did but still can't get it to work.
Message was edited by: eddyq I added the information shown by Device Manager.
