Spencer Krit

Virtual Serial Port Driver - VSPD allows creating virtual serial port pairs on PC

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Virtual Serial Port Driver by Eltima creates virtual COM port pairs in the system. Using these ports serial applications can communicate with each other and transfer data via virtual null-modem cable.

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Spencer Krit
With the Virtual Serial Port Driver, I can create a virtual null-modem cable from COM1 to COM2. This way I am able to simulate the strings that the hardware would send to my program and test the functionality of my program.
Michael Select
Virtual Serial Port Driver is an alpha plus for debugging, and they have the most accommodating and responsive customer support team ever. All the more reason to opt for the Eltima products.