Free Virtual Serial Ports Emulator for Windows

Name: Free Virtual Serial Ports Emulator
Rating: 3.7 (3 reviews)
Author: Eterlogic Software

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Editors’ Review

Download.com staffFebruary 26, 2026

VSPE is a powerful tool for developers. It creates virtual serial devices, enabling seamless creation, debugging, and testing of serial port applications.

Pros
- Creates virtual serial devices for testing.
- Supports data transmission and reception.
- Allows a single device to be opened multiple times.
- Facilitates sharing physical serial port data.
- Enables the creation of virtual pipes.
Cons
- Specific updates in version 0.865 are not detailed.

Free Virtual Serial Ports Emulator for Windows

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Full Specifications

GENERAL

Release: September 22, 2008

Latest update: February 26, 2026

Version: 0.865

OPERATING SYSTEMS

Platform: Windows

Operating System

Windows Vista
Windows 10
Windows 2000
Windows NT
Windows XP

Additional Requirements: None

POPULARITY

Total Downloads: 32,627

Downloads Last Week: 36

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User Reviews

3.7/5

3 User Votes

Major defect
tomsawMarch 20, 2012
Pros
Free, simple.
Cons
The application looses data.
Summary
For my applications, I need to connect two COM ports with a null modem cable. So I connected COM1 & COM2 and started my applications. For a short time, it was working. However after some seconds of testing, the application looses data. Sending retuns no errors however receiving can only seem to get the first 4K of the 8K buffer. I tested it on two computers with the same result.
Prerfect. Just what I was after
dstrattenFebruary 4, 2010
Pros
Free It works perfectly for my application Did I mention its free ?
Cons
So far its been exactly what I've been after so no cons.
Summary
Downloaded this to emulate some COM ports to test some software I was writing in Visual Basic. Set it up in two port mode, fired up Hyperterminal on one port and talked to it via my VB application. Worked perfectly first time.
Fantastic software
armorjanOctober 7, 2009
Pros
Light, simple, efficient, and suited my needs.
Cons
Nothing is con
Summary

Developer’s Description

By Eterlogic Software

Create, debug, and test applications that use serial ports.

VSPE is intended to help software engineers and developers to create/debug/test applications that use serial ports. It is able to create various virtual devices to transmit/receive data. Unlike regular serial ports, virtual devices have special capabilities: the same device can be opened more than once. Using VSPE you can share physical serial port data between several programs, create virtual pipes and so on. Version 0.865 includes unspecified updates.

Free Virtual Serial Ports Emulator for Windows

Editors’ Review

Pros

Cons

Free Virtual Serial Ports Emulator for Windows

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Major defect

Prerfect. Just what I was after

Fantastic software

Developer’s Description