Use a tool like 7-Zip to open SOL_0.7r5_Win64_.zip .
Click the in the top right corner and hit Install . In-Game Configuration
Drag the SOL_0.7r5_Win64_.zip file directly into the CM window.
If prompted to overwrite existing files, select Yes . Method 2: Content Manager Drag-and-Drop Open Content Manager .
Sol requires CSP to function. Version 0.7r5 is very old, but modern CSP versions (1.76 or newer) are generally recommended for stability.
The easiest way to manage and install AC mods. Installation Methods Method 1: Manual Installation (Recommended for Sol)
Go to Settings > Assetto Corsa > Apps and check all "Sol" related boxes (e.g., Sol Planer, Sol Config).