Virtual Serial Ports - Build advanced serial port configurations for any usage scenario
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Command-Line Utility

Command-line utility rspcli.exe may be used as a simple API to create and manage alias, shared, remote serial ports and local bridges. Command-line utility returns 0 if the requested operation is completed successfully, or non-zero error code (HRESULT). It also prints error description to STDOUT unless the --silent parameter is specified.

Command-line Parameters

The utility supports the following command-line parameters:

-?, --helpDisplays the list of supported parameters with short description.
--silentDo not display any error or success messages.
-create(alias | bridge | shared | remote | pipe | tcp)Create new virtual serial device.
-deleteNDelete an existing port.
-list(alias | bridge | shared | remote | pipe | tcp)List all remote serial ports on the current computer.
-list-remotehostnameList all shared serial ports on the specified host.
Port Creation Parameters
--local-portNOptional local port number. If omitted, the next available port is used.
Alias Port Parameters
--alias-portNOriginal serial port number.
Bridge Parameters
--bridge-portsN1,N2Optional bridges port numbers.
Shared Port Parameters
--share-portNOriginal serial port number.
Pipe Port Parameters
--create-pipe\\.\pipe\PIPENAMEName of the pipe to create.
--connect-pipe\\SERVERNAME\pipe\PIPENAMEName of the pipe to connect to.
--num-instancesNNumber of port instances, 255 to unlimited.
--input-buffer-sizeNSize of the input buffer.
--output-buffer-sizeNSize of the output buffer.
--pipe-timeoutNPipe timeout.
--pipe-security-descriptorstringPipe security descriptor in SDDL format.
Common Port Parameters
--baud-rateNSpecify port baud rate to override.
--data-bitsNSpecify port data bits to override.
--parity(no | odd | even | mark | space)Specify port parity to override.
--stop-bits(1 | 1.5 | 2)Specify port stop bits to override.
--flow-control(none | software | hardware)Specify port flow control to override.
--timeouts"N1,N2,N3,N4,N5"Specify port timeouts to override. Timeout values must be separated with commas (no spaces allowed) and must in the following order: readIntervalTimeout, readTotalMultiplier, readTotalConstant, writeTotalMultiplier, writeTotalConstant. -1 can be used to specify MAXDWORD. Enclose the whole parameter in double quotation marks if using negative numbers.
Remote Port Parameters
--remote-hosthostnameName or address of remote host that shares COM port.
--remote-portNName of the remote COM port for RSP server or remote TCP port for TCP/IP server.
--loginusernameName of the user to use for authentication on a remote host. May include domain in the form DOMAIN\USERNAME.
--passwordpasswordPassword of the user for authentication on remote computer. If omitted, the user is asked to enter password in terminal.
--connection-timeoutNAn optional connection timeout (in milliseconds).
--connection-attemptsNAn optional number of connection attempts to try before giving up.
TCP Port Parameters
--tcp-protocol(rfc2217 | raw)

TCP/IP emulation protocol. Defaults to “rfc2217”.

rfc2217RFC2217 protocol.
rawRaw protocol.
--local-address(ip-address | *)Local address to listen on.
--local-tcp-portNLocal TCP port number to listen on.
--remote-hosthostnameName or address of remote host that shares COM port.
--remote-portNRemote TCP port number.
Compatibility Flags

Gets the current compatibility flags.

0not set
1ignore requests to set invalid special characters.

Sets the current compatibility flags.

0not set
1ignore requests to set invalid special characters.