Download NPS

The following versions of NPS are available for download.

NPS does not contain any viruses, spyware, adware, or other types of malware. Click "Download" to view more information about the release or to download it.

Latest build:

The latest build is the most recent pre-release version of NPS. This version contains the latest features that NPS has to offer, but it may not be complete and is not guaranteed to run under your configuration.

NPS codename Obsidian, Alpha 2 (3.0.43)

Current Stable Release:

This is a released version of NPS that has been tested to work correctly under the supported configurations. Note, however, that it is outdated.

NPS 2.1.133

Older versions:

If you are having problems with the current stable release of NPS, but an older version functioned without problems, please try one of the releases here.

NPS 2.1.70

Pre-release builds:

These are older pre-release versions. In most cases, you will want to use the latest build as opposed to using older pre-release builds. As with all pre-release software, use at your own risk.

NPS codename Obsidian, Alpha 1 (3.0.34)

NPS codename Obsidian, Milestone 3 (3.0.28)

NPS codename Obsidian, Milestone 2 (3.0.21)

NPS codename Obsidian, Milestone 1 (3.0.15)

Extras and upgrades:

These are provided as a supplement to the basic installation of NPS. Please be sure to check the system requirements before downloading.

Obsidian Filter Template (for developing filters for NPS 3.x)

NOTE: If you want to link to the download of NPS, please link to the URL provided. Files in the Downloads section are hotlink-protected.