Windows

Improvements

• The WebRTCConnectionService log now displays an error message if ssh-server.exe is missing. The Agent will no longer crash in this situation, and services that do not require ssh-server.exe will remain unaffected.

FastViewer Agent Tray Icon:

• The taskbar pop-up shown when hovering over the icon now displays the title FastViewer at the top.

Upgrade Installations:

• Upgrade installations are now supported for Remote Setup (EXE) and Remote Setup (MSI):
  • Example: Install Remote Setup (MSI) 3.31 → Perform an upgrade installation by executing Remote Setup (MSI) 3.32.
    • Requirements: If a Remote Agent was originally installed with version 3.31 or newer, it is now possible to perform an upgrade installation.
  • Examples of supported scenarios:
    • Install Remote Setup (MSI) 3.31 → Upgrade to Remote Setup (MSI) 3.32.
    • Install Remote Setup (MSI) 3.31 → Upgrade to Remote Setup (MSI) 3.32 → Upgrade to Remote Setup (MSI) 3.33.
    • Install Remote Setup (MSI) 3.31 → Upgrade to Remote Setup (MSI) 3.33.
  • Examples of unsupported scenarios:
    • Install Remote Setup (MSI) 3.30 (unsupported) → Upgrade to Remote Setup (MSI) 3.31 → Not Supported (the original installation must be a supported version).
    • Install Remoted Setup (MSI) 3.30 (unsupported) → Update Agent to 3.31 → Upgrade to Remote Setup (MSI) 3.32 → Not Supported (the original installation must be a supported version).

M42 FastViewer WebConsole File Transfer Speeds:

• Improved file transfer speeds for uploads and downloads of small files, large files, and folders.

• Additional bug fixes and improvements.

Bug fixes

• portal.fastviewer.com: Fixed an issue where the Remote Setup (MSI) uninstaller did not function correctly for customers with specific security policies.
  Setups downloaded on or after 11.02.2026 no longer have this issue.
  Version 3.31.0001 and higher are affected.
  Note: this bug fix was released on 11.02.2026.
• Remote Agent, FastViewer Remote Console: Fixed a black-screen issue that occurred after establishing a connection, when the /nowebrtc parameter was set on only one side (Agent or Master).
• Windows Proxy Authentication dialog: Fixed an issue where the Windows Proxy Authentication dialog was not displayed when starting FastMaster / RemoteConsole with the /proxy and /proxyuser parameters. 
• Resolved an issue where no pop-up would appear when using the /proxy and /proxyuser parameters.
• Fixed an issue with an Agent starting PowerShell as a 32-bit application.
• The Remote Assistance Agent Service no longer stops unexpectedly.