Software Downloads

Access the latest versions of Comtarsia products. For older versions, please see the sections below.

SignOn Solutions 7.0

The current generation of our authentication and identity management suite.

SignOn Solutions 7.0 for Windows

This bundle includes our core components for Windows infrastructure:

  • Logon Client
  • SignOn Proxy with MFA Engine (TOTP, FIDO2, etc.), LDAP Gateway and RADIUS Gateway
  • SignOn Agent for Active Directory
  • Web Management Interface & REST API
  • Management Console & Authentication Service

Windows 10/11 & Server 2016 - 2025

Bundle: 7.0.6.1 (September 28th, 2025)

Test license valid until: November 30th, 2025

Download for Windows

Supported Platforms:

Windows 10/11 (1507, 1511, 1607, 1703, 1709, 1803, 1809, 1903, 1909, 2004, 20H2, 21H1, 21H2, 22H1, 22H2, 23H2, 24H2)
Windows Server 2016/2019/2022/2025 (1607, 1709, 1803, 1809, 1903, 1909, 2004, 2009, 21H1, 21H2, 22H1, 22H2, 24H2)

SignOn Solutions 7.0 for Linux

This bundle includes server components for Linux infrastructure:

  • SignOn Proxy with MFA Engine (TOTP, FIDO2, etc.), LDAP Gateway and RADIUS Gateway
  • Web Management Interface & REST API

Select your distribution

Looking for technical details? View the Product Manuals or Build History.

Older Versions

Access previous versions of Comtarsia SignOn Solutions. These are provided for legacy systems and are not recommended for new deployments.

SignOn Solutions 2016 MFA

Download Bundle

To ensure support for the latest Microsoft updates, always download the latest released setup bundle.

SOS2016-6.2.80.4.exe (86.1 MB)

Bundle: 6.2.80.4 (September 28th, 2025)

Test license valid until: November 30th, 2025

Included Components:

Logon Client: Primary LDAP authentication for Windows desktops/servers.

SignOn Proxy: MFA Engine, AD/LDAP Auth, and Agent Trigger.

Agent for Active Directory: Automated AD account management.

Smart Card Middleware: CSP, PKCS#11, and Minidriver support.

And more: Includes Agents for LDAP & Windows, LDAP Replicator, Web Gateway, Gateways for LDAP & RADIUS.

Supported Windows Platforms:

Windows 7, Windows 8.1, Windows Server 2012 R2
Windows 10/11 (1507, 1511, 1607, 1703, 1709, 1803, 1809, 1903, 1909, 2004, 20H2, 21H1, 21H2, 22H1, 22H2, 23H2, 24H2)
Windows Server 2016/2019/2022/2025 (1607, 1709, 1803, 1809, 1903, 1909, 2004, 2009, 21H1, 21H2, 22H1, 22H2)

SignOn Solutions 2012

Download Bundle

Test license key available only on request.

SOS2012-6.0.36.4.exe (64.3 MB)

Build: 6.0.36.4 (October 17th, 2017)

Includes Logon Client, SignOn Proxy, and Agents for Windows platforms from Vista/Server 2008 up to Windows 10/Server 2016.

SignOn Solutions 2008

Download Bundle

Test license key available only on request.

SOS2008-setup-bundle-36.exe (25.9 MB)

Build: Bundle 36 (January 14th, 2013)

Includes Logon Client, SignOn Gate, and Agents for Windows Vista/Server 2008.