FireDaemon Zero

The FireDaemon Zero blog covers announcements, feature updates, and practical guidance for managing interactive Windows services on Session 0. From switching seamlessly between user sessions and Session 0, to auditing desktop access and replacing the outdated UI0Detect service, it's the essential resource for sysadmins and developers running interactive FireDaemon Pro services in production environments.

FireDaemon Zero 4 Pricing

FireDaemon Zero 4 is available under two licensing models: a standard license for home, business, and enterprise users, and an OEM license for integrators and developers. Standard licenses are perpetual and priced per machine, starting at $50.00, with volume discounts for 2 or more licenses. Maintenance subscriptions are no longer available. The OEM license is priced at $2,000.00, includes a first-year support subscription, and permits royalty-free redistribution rights.

Apr 132 min read

FireDaemon Zero Compatibility and Support Matrix

The FireDaemon Zero compatibility matrix maps Microsoft Windows operating system versions to specific Zero and Zero OEM software versions. It covers Zero 3 and Zero 4 across both 32-bit and 64-bit systems. Zero 4 is the current and final release, while Zero 3 is still supported but no longer maintained. The matrix uses three statuses: Compatible/Supported, Compatible/Unsupported (typically due to the OS reaching end of support or incompatibilities), and Incompatible/Unsupport

Apr 131 min read

FireDaemon Zero Changelog

The FireDaemon Zero changelog documents the complete version history of Zero, from the original Session 0 Viewer 1 release in 2015 through to the current Zero 4 series. Each entry lists new features, improvements, bug fixes, and security updates. Zero 4 is the current actively maintained release, Zero 3 is end of development, and Zero 2 is end of life with no support. The changelog uses four markers to categorise changes: N for new, I for improvement, F for fix, and S for sec

Apr 127 min read

FireDaemon Legacy Downloads

FireDaemon legacy downloads are available for Fusion, Pro, and Zero products. Fusion 6.6.6 and 7.1.11 have been superseded by Fusion 8, with their final builds still downloadable as trials. FireDaemon Pro 4.6.3 and 5.4.17 have been superseded by Pro 6, with SHA-2 256 checksums provided for each installer. FireDaemon Zero 2.6.4 is end-of-life, and Zero 3.2.6 has been superseded by Zero 4. Licenses for all legacy versions are no longer sold, and OEM variants are no longer avail

Apr 72 min read

FireDaemon Software Product Update Highlights for February 2026

We've shipped updates to all three FireDaemon products. Pro 6.3.5 adds Service Auditing, Windows Server 2025 dMSA support, bulk password rotation, 3x faster service definition loading, and a raft of UI and reliability fixes. Fusion 8.1.6 ships with OpenSSL 3.6.1. Zero 4.0.8 gets a toolchain update. All available now with 30-day free trials. Free update to existing customers and customers with software assurance subscriptions.

Feb 204 min read