3cdaemon: Windows 11

Windows 11’s Controlled Folder Access (part of Defender) blocks unauthorized apps from writing to Documents, Pictures, Desktop, etc. If your TFTP root is inside a protected folder, 3CDaemon will silently fail.

| Software | Windows 11 Native | TFTP | FTP | Syslog | Notes | |----------|------------------|------|-----|--------|-------| | SolarWinds TFTP Server (free) | Yes | ✅ | ❌ | ❌ | Minimal, reliable | | Pumpkin (open source) | Yes | ✅ | ❌ | ✅ | Modern, GUI | | Kiwi Syslog Server (free) | Yes | ❌ | ❌ | ✅ | Best for logs | | FileZilla Server | Yes | ❌ | ✅ (TLS) | ❌ | Secure FTP | | tftpd64/tftpd32 | Yes | ✅ | ✅ | ✅ | Direct 3CDaemon replacement | 3cdaemon windows 11

tftpd64 (or tftpd32) is the most popular drop-in replacement – same features, actively maintained, and runs perfectly as a service on Windows 11. Windows 11’s Controlled Folder Access (part of Defender)

The original 3Com website is defunct. Use a trusted source like MajorGeeks, Softpedia, or an internal IT repository. Look for version 2.0.10 (the most stable release). Filename typically: 3CDaemon_setup.exe (approx. 5 MB). The original 3Com website is defunct

Security Tip: Always scan downloaded executables with Windows Defender or VirusTotal.

Do not install to the default C:\Program Files (x86)\. Why? 3CDaemon’s configuration (users, log files, TFTP root) is stored in the same folder as the executable. Windows 11 protects Program Files with write virtualization, causing settings to disappear after a reboot.

Recommended: Create a folder at the root level, e.g., C:\3CDaemon.