The original TCUP v9.0 is from 2016–2017. The bundled Total Commander core (9.0) has known security vulnerabilities that allow remote code execution via malicious ZIP files or FTP connections. By using a "fixed" older version, you are exposing your system to CVEs (Common Vulnerabilities and Exposures) that were patched in later Total Commander builds (9.12, 9.22, 10.0, 11.0).
Version 9.0 of Total Commander (released in 2016) was a major milestone, introducing native 64-bit support, dark mode, and improved archive handling. TCUP v9.0 became a "golden build" for many users because it was stable, widely shared, and supported older Windows versions (7, 8, 10). Newer TCUP versions exist (e.g., v10.0, v2024), but v9.0 remains popular on low-end hardware or legacy systems. Total Commander Ultima Prime v9.0 Fix
Legitimate TCUP (from the official TCUP portal) is free and legal. A "fixed" version cannot be updated. Have a bug? Need a plugin fix? You are completely on your own. The community will (and should) refuse to help users with cracked software. The original TCUP v9