Free Serial Port Splitter

Get access to serial device by multiple applications
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Zero price software
by HHD Software

Changelog

Version 4.27.01.0682
Released on 5/23/2021
Latest release
Fixed bugs
Command-line utility is unable to delete devices
A bug that prevented the command-line utility from successfully deleting virtual serial port devices has been fixed.
Version 4.27.00.0675
Released on 4/28/2021
Fixed bugs
Several bugs fixed
This release fixes a number of reported and internally discovered bugs.
Version 4.26.01.0669
Released on 4/8/2021
Fixed bugs
Unable to create ports in free edition
A regression in previous build makes it impossible to create shared, alias and split ports in free edition.
Version 4.26.00.0665
Released on 4/1/2021
Updated features
Improved compatibility with Windows 7
VSPT API can now be used on all Windows 7 installations. Previously API calls could fail depending on OS configuration.
Version 4.25.00.0663
Released on 3/19/2021
Fixed bugs
Fixed a crash in API methods
Fixed a crash when calling several API methods.
New features
Improved support for legacy applications
This release introduces the concept of compatibility flags. Setting various flags will enable non-standard virtual serial port behavior to suit legacy applications. This version adds a flag that disables check for valid special serial port characters.
Version 4.20.00.0651
Released on 2/22/2021
Fixed bugs
Incorrect port operation
Shared port did not function properly under some conditions.
Serial timeouts support
This release improves compatibility and proper serial port timeout emulation.
New features
Serial timeouts override
The user may now specify serial timeout overrides for shared, alias and split ports, in addition to previously supported overrides of baud rate, line parameters and flow control.
Version 4.19.00.0622
Released on 12/2/2020
Fixed bugs
Several bugs fixed
This release fixes a number of reported and internally discovered bugs.
Version 4.12.01.0597
Released on 7/17/2020
Latest release
Fixed bugs
Several bugs fixed
This release fixes a number of reported and internally discovered bugs.
Version 4.12.00.0593
Released on 6/14/2020
Fixed bugs
Fixed ISerialPortLibrary.getPorts API
ISerialPortLibrary.getPorts returned incorrect data. This has been fixed.
Fixed memory leaks
This release also fixes a number of memory leaks in library.
Version 4.10.00.0557
Released on 2/3/2020
Fixed bugs
Several bugs fixed
This release fixes a number of reported and internally discovered bugs.
Version 4.03.00.0498
Released on 12/4/2019
Fixed bugs
Failure to handle Purge requests
Shared and splitted serial ports failed to properly handle serial purge requests.
Read timeout processing failed
Read requests that ended with a timeout were incorrectly handled.
Version 4.02.00.0482
Released on 9/19/2019
Latest release
Fixed bugs
Several bugs fixed
This release fixes a number of reported and internally discovered bugs.
Version 4.01.00.0467
Released on 9/10/2019
New features
New major version
Initial release of Free Serial Port Splitter.
Share & Access Signle Serial Device by Multiple Apps Simultaneously
Free Serial Port Splitter Advantages
Share & Access Signle Serial Device by Multiple Apps Simultaneously
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