For maximum compatibility, you typically need to download specific "last-supported" versions of these tools. Backporting ffmpeg 5.1.2 to Microsoft Windows XP / XP x64
Finding a modern video compressor that still supports can be a challenge, as most current software requires Windows 10 or 11. However, several legacy versions of powerful tools and community-maintained builds still provide excellent compression for XP users. Top Legacy Video Compressors for Windows XP download free video compressor for windows xp