Serial ports problem. I configured virtual machine to have com port on Host Pipe. Ports in use on host OS when virtualbox is running. The serial port. VirtualBox Serial Debugging on Windows. This tutorial uses VirtualBox version 4.2.6. You can set Port Mode as either Host Pipe Mode or Raw File Mode when serial.

I am using 1.5.6 (_1.5.6-1_Win_x86.msi) on Windows XP. Guest system is Windows Server 2003 from en_windows_server_2003_with_sp1_enterprise.iso (MSDN). I configured virtual machine to have com port on Host Pipe, but it doesn't seem to work. When I look at guest's Device Manager, it shows no ports at all; when I look at its Resources view, it doesn't show serial port resources as used (standard COM1). I added COM2 to use physical port, and result is the same. On the other hand, when I run Process Explorer on host, it shows both handles as open by process.

So, the question is: how to have serial ports work? I really need only pipe (to connect WinDbg). On a related note, I have had trouble getting Vboxmanage to even connect the UART to anything, be it a named pipe or USB to serial adapter.

I need this for my speech synthesizer, and it is becoming rather frustrating. I get the following error: Cannot set the host port mode of the serial port 0 because the device path is empty or null. I get a similar error when I try pipes: Cannot set the host pipe mode of the serial port 0 because the pipe path is empty or null.

This is proving extremely frustrating, and I hope it could be resolved quickly. Host is Windows XP Home Eddition, though I've tried on Professional and it doesn't seem to make any difference. Any help appreciated. Microsoft-windows-security-spp The Software Protection Service Has Stopped. Thanks, Zack. Replying to: I am using 1.5.6 (_1.5.6-1_Win_x86.msi) on Windows XP. Guest system is Windows Server 2003 from en_windows_server_2003_with_sp1_enterprise.iso (MSDN). I configured virtual machine to have com port on Host Pipe, but it doesn't seem to work.