Sol_0.7r5_win64_.zip

Sol requires CSP to function. Version 0.7r5 is very old, but modern CSP versions (1.76 or newer) are generally recommended for stability.

Go to Settings > Assetto Corsa > Apps and check all "Sol" related boxes (e.g., Sol Planer, Sol Config). SOL_0.7r5_Win64_.zip

Drag these four folders into your main Assetto Corsa installation directory (usually C:\Program Files (x86)\Steam\steamapps\common\assettocorsa ). Sol requires CSP to function