Is it possible to Simulate a communication via serial?

this is the argument parameters that i am using
args = new string[]
{
"-S", "COM1:56000:8None1",
"-x", "sim1.xml"
};
I tried using a comport that my pc doesn't have, and it asked me to use one of my existing ports.
I tried com1 which is there, but I am not using, and this is the console output

Logical Name DLMS Server in serial port COM1 56000 8None1 None using HDLC.
----------------------------------------------------------

i tried connecting to it using the director but the throws this port access denied

08:36:34 Initializing serial connection.
System.UnauthorizedAccessException: Access to the port 'COM1' is denied.
at GXDLMSDirector.GXDLMSCommunicator.InitSerial()
at GXDLMSDirector.GXDLMSCommunicator.InitializeConnection(Boolean force)
at GXDLMSDirector.GXDLMSDevice.InitializeConnection()
at GXDLMSDirector.MainForm.Connect(Object sender, GXAsyncWork work, Object[] parameters)
08:36:47 Initializing serial connection.
System.UnauthorizedAccessException: Access to the port 'COM1' is denied.
at GXDLMSDirector.GXDLMSCommunicator.InitSerial()
at GXDLMSDirector.GXDLMSCommunicator.InitializeConnection(Boolean force)
at GXDLMSDirector.GXDLMSDevice.InitializeConnection()
at GXDLMSDirector.MainForm.Connect(Object sender, GXAsyncWork work, Object[] parameters)
08:37:09 Initializing serial connection.
System.UnauthorizedAccessException: Access to the port 'COM1' is denied.
at GXDLMSDirector.GXDLMSCommunicator.InitSerial()
at GXDLMSDirector.GXDLMSCommunicator.InitializeConnection(Boolean force)
at GXDLMSDirector.GXDLMSDevice.InitializeConnection()
at GXDLMSDirector.MainForm.Connect(Object sender, GXAsyncWork work, Object[] parameters)

does it need actual hardware? and am i missing some parameters?

I also tried using the just -S COM1, still the same errors