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.

Drag the SOL_0.7r5_Win64_.zip file directly into the CM window. SOL_0.7r5_Win64_.zip

Manual installation is often more reliable for Sol to ensure all system files land in the correct folders. Sol requires CSP to function

Go to Settings > Custom Shaders Patch > Weather FX . Set the Weather script to "Sol". SOL_0.7r5_Win64_.zip

Use a tool like 7-Zip to open 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 ).