Were you looking for help specifically with this legacy BIOS utility, or were you trying to create a "flashable zip" for an instead? How to flash your bios - BIOS upgrade - Bootdisk.Com

The tool relied on (or a DOS boot disk) and direct I/O port access—something modern Windows versions (Vista and later) block for security reasons.

: Users can manually add their specific BIOS flashing utilities and the actual BIOS backup/update files to the image.

(Linux/macOS/Windows via WSL)

FlashCD1 Zip aims to modernize the ZIP experience for large, mixed-content packages—keeping simplicity and maximum compatibility while adding integrity, streaming, and update features ideal for modern workflows.