Service Host 2.4.0

Release Date: 2026-12-18

These are the release notes for Service Host version 2.4.0. This document describes the user-visible changes that have been made to the software since release 2.3.0.

New Features

1 issue

Known Issues

  • Service Host is not forward compatible. Configurations created with a newer version will not work on older versions.

  • Service Host is not able to start Viz Engine if DCH type of NVIDIA driver is installed. Try to configure Service Host to start Viz Engine on User Session or clean install Standard type of NVIDIA driver instead.

  • Service Host is not able to start Viz Engine when it is configured to start Viz Engine on User Session when no users are interactively logged on.

  • Special characters are not supported when trying to rename services while using Firefox.

Supported Hardware and Software

This software has been tested to run on the following systems:

  • Windows Server 2019 (64-bit), Windows Server 2022

  • Windows 10 (LTSC 21H2)

  • Windows 11 (LTSC 24H2)

Note: Only English language Operating System(s) are supported.

Installation

  • Administrator privileges are required to install Service Host.

  • OpenSLP is installed along with Service Host if not present.

  • The WIBU CodeMeter runtime 8.40a installed if not already present.

Activation

Service Host does not require any license; however, it installs the WIBU CodeMeter runtime.

Several Service Host plug-ins like Channel Recorder require licenses.

Channel Recorder with Service Host 2.4.0

Driver Versions

Important: When upgrading from 10.4 to 11.x Matrox driver, follow these mandatory steps:

  • Uninstall old Matrox driver.

  • Cold Boot (Turn off computer for at least 20 seconds).

  • Switch Computer on.

  • Continue installation of new driver.

  • For Matrox video cards, driver version 11.1.101.2163 is required. This version is mandatory. Pre-Release versions are not supported. 

  • Uninstall previous versions of Matrox DSX.Utils/DSX Topology Utils prior to installing this driver.

  • Install drivers only from a local drive.

Upgrade Notes

  • Old version of Channel Recorder (1.x) should be uninstalled before installing this version.

  • The Server Search list may be reset when upgrading CodeMeter Runtime. Please make sure that the Server Search list is correct after an upgrade.

New Features

1 issue

Fixed Issues

1 issue

Known Issues

  • An invalid decimal value in the GUI configuration is allowed to be saved in the XML configuration file.

  • When the timecode-source is set to TIME_OF_DAY and discontinuous-tc is enabled, Channel Recorder does not record the actual time of day.

  • In case a pre-release of the Matrox-Driver was installed, it is necessary to follow the procedure described below.

  • Unregister mvfDsxCore.dll.

    1. Click Start > Run (or use the Windows command line: Search > CMD > (Right click) Run as Administrator)

    2. Type REGSVR32 /U "C:\Program Files\Matrox DSX-TopologyUtils\System64\mvfDsxCore.dll" and press ENTER.

  • Shut down X.info in the task manager.

  • Delete mvfDsxCore.dll from the folder C:\Program Files\Matrox DSX-TopologyUtils\System64\.

  • Start X.info.

Documentation

Documentation for Service Host and Channel Recorder are available in the Service Host documentation at the Vizrt Documentation Center.

Support

Support is available at the Vizrt Support Portal.