Nx Meta Server 6.1.2.42921

VMS application built on the Nx Meta platform.

Download for Windows

About Nx Meta Server

The Nx Meta platform exists to allow developers to create and sell their own products that are integrated with Nx Witness, whether it’s an integration with the Nx ecosystem or your own re-branded VMS solution based on the Nx platform.

Technical details

PublisherNetwork Optix
AuthorNetwork Optix, Inc.
Version6.1.2.42921
Release date2026-05-20
LicenseProprietary
Installer typeburn
Architecturex64
Package IDNetworkOptix.NxMeta.Server
Install scopeAll users

Install Nx Meta Server from the command line

Install with Windows Package Manager
winget install --id=NetworkOptix.NxMeta.Server -e
Update to the latest version
winget upgrade --id=NetworkOptix.NxMeta.Server -e
Uninstall
winget uninstall --id=NetworkOptix.NxMeta.Server -e
Silent install with the offline installer
"nxwitness-server-6.1.2.42921-windows_x64.exe" /quiet /norestart
Uninstall the MSI package
msiexec /x {c4b0d5ad-f1a2-4b83-8310-d059a3de7e00} /quiet

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Nx Meta Server version history

6.1.1.42624 Mar 11, 2026

Nx Meta VMS 6.1 to 6.2 Release Notes
Nx Meta VMS 6.1.1.42649 R2
R2 release of Nx Meta VMS for the VMS 6.1.1.
For Server Plugin SDK usage instructions, see the readme.md file included within the
metavms-server_plugin_sdk-6.1.1.42649-universal.zip archive.
ATTENTION: These Release Notes show changes relative to Nx Meta VMS 6.1.0.42176 R7.
NEW FEATURES
General Features
- AI Manager is added as a plugin. See more at https://www.networkoptix.com/nx-ai-manager.
Server HTTP API
Virtual Device Uploads (VMS-60188)
- Added new chunk-based upload endpoints for virtual cameras in v4, replacing the deprecated
legacy /api/downloads/... API:
- GET /rest/v4/devices/{deviceId}/virtual/uploads: list active uploads for a virtual device.
- POST /rest/v4/devices/{deviceId}/virtual/uploads: initiate one or more file uploads, providing
file metadata (startTimeMs, durationMs, sizeB, md5, container, codec). Returns upload session
details including uploadId, chunkSizeB, and fileId.
- GET /rest/v4/devices/{deviceId}/virtual/uploads/{uploadId}: get upload status including
uploadProgressPercent and archiveProgressPercent.
- PUT /rest/v4/devices/{deviceId}/virtual/uploads/{uploadId}: upload a data chunk for an
in-progress upload.
- DELETE /rest/v4/devices/{deviceId}/virtual/uploads/{uploadId}: cancel an in-progress upload.
Per-Item ETags for Resource Endpoints (VMS-60867)
- Added etag field to individual resource responses across v1–v4. This enables external systems …

6.1.0.42176 Dec 1, 2025
6.0.6.41837 Sep 24, 2025

Nx Meta VMS 6.0.6.41818 R1
R1 release of Nx Meta VMS for the VMS 6.0.6 Release.
For Metadata SDK usage instructions, see readme.md included within Metadata SDK zip.
ATTENTION: These Release Notes show changes relative to Nx Meta VMS 6.0.5.41290 R1.
NEW FEATURES
Server HTTP API
- Added DELETE /rest/v3/site/merge to cancel an in-progress site merge operation. This complements existing GET /rest/v3/site/merge and POST /rest/v3/site/merge endpoints by providing a way to terminate the merge workflow (VMS-59690).
IMPROVEMENTS
Server HTTP API
- N/A
Server Plugin SDK
- N/A
Client JS API
- N/A
SIGNIFICANT BUGFIXES
The following is a non-exhaustive list of significant fixes:
- Server API: Fix cloud user ID case sensitiveness (VMS-59405).
- Security: Stop JSON RPC notifications when permission is lost (VMS-59524).
- Security/UX: Clear local user credentials when session expires (VMS-59210).
- Media export: Ensure low-res chunk is included when transcoding is enabled (VMS-59700).
- Stability: Fix client crash in self-update mode (VMS-59818).
- Stability: Fix export layout crash (VMS-59315).
- Stability: Fix bug in H264Parser::processData (VMS-59349).
- Streaming: Fix support of broken RTSP interleaved streams (VMS-58708).
- Auth: Fix invalid qop parameter in digest auth (VMS-59634).
- Storage: Improve StorageDb task processing parallelization; fix media server stops writing when backup storage offline (VMS-59160).
SDK CHANGES BREAKING PLUGIN COMPILATION
- N/A …

Frequently asked questions

Is Nx Meta Server free?

Nx Meta Server is proprietary software from Network Optix. Check the publisher's license terms for pricing and usage rights.

What is the latest version of Nx Meta Server?

The latest version is 6.1.2.42921, released on May 20, 2026.

Is it safe to download Nx Meta Server?

The download button links to the official installer published on updates.networkoptix.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 6b41f15632d9203b608f31fa5a782ce8b9e7c96275cfea63f3155aa4ebc08120.

Which Windows versions does Nx Meta Server support?

Nx Meta Server runs on Windows and is available for 64-bit (x64) systems.

How do I install Nx Meta Server silently?

Run the offline installer with "nxwitness-server-6.1.2.42921-windows_x64.exe" /quiet /norestart, or install it with Windows Package Manager: winget install --id=NetworkOptix.NxMeta.Server -e --silent.

How do I uninstall Nx Meta Server?

Open Settings › Apps › Installed apps, find Nx Meta Server and select Uninstall. From the command line, run winget uninstall --id=NetworkOptix.NxMeta.Server -e.