null s royale

Provide first-class citizens as a replacement for the primitive value None

Emulate one or more couples of RS-232 ports connected via null-modem cable.

VSPD emulates RS232 serial ports connected via virtual null-modem cable.

Create virtual COM ports connected with virtual null-modem cable, share COM port

VSPD XP 5.1 emulates RS232 serial ports connected via virtual null-modem cable.