Preview Server Release Notes

Version 4.5 | Published March 21, 2022 ©

Preview Server Release Notes

Preview Server 4.5.0

Release Date: 2022-03-21

These are the release notes for Preview Server 4.5.0. This document describes the user-visible changes that have been made to the software since version 4.4.1.

Preview Server manages the pool of Viz Engines that serve up snapshots of graphics to client software such as Viz Multichannel, Viz Pilot, and Viz Trio.

System Requirements


  • Windows 7

  • MS .NET Framework 4.6.2


  • The latest installer is on at /products/VizPreviewServerConnectionBroker/LatestVersion.

  • The configuration file 'PreviewServer.exe.config' is located in the installation directory (default: C:\Program Files (x86)\Vizrt\Preview Server).


  • The Windows .exe installer is able to upgrade previous installations to the 4.5.0 version automatically.

  • Main testing of Preview Server 4.5.0 has been performed on Windows 10.

Minor Enhancements and Changes



No issues found


Documentation for Preview Server is available at the Vizrt Documentation Center:


Support is available at the Vizrt Support Portal.