If your goal is simply to play LAN multiplayer with friends on version 0.7d without paying, consider this ethical workaround:
The Shared Screen Method: LFS demo allows split-screen on one PC. One player uses keyboard, another uses a controller. Live For Speed 0.7d Unlocker
The Time-Limited Tournaments: Since 0.7d is so old, many sim racing leagues have moved on. You can find abandoned S2 keys from old forum giveaways (though these are rare). If your goal is simply to play LAN
Live For Speed (LFS) remains one of the most respected racing simulators, first released in 2002 and still updated today. Version 0.7d (circa 2019–2020) introduced significant improvements: a new UI, better force feedback, the Rockingham circuit, and the legendary Formula XR (based on a modern F1 car). Distribution methods: