One user who resolved their problem with this method noted: “Basically, I deleted the appmanifest file and had Steam re-run the initial setup. Both games now work.”
Click . This is the safest way to replace a missing DLL. Manual Installation: Download the .zip file from the links above.
If found, select the file and click or Allow on device . steamapidll for grid autosport link
If you purchased GRID Autosport on Steam, this is the safest and most reliable fix. Steam’s verification system compares your local files against the master copies on its servers:
Providing Valve Anti-Cheat (VAC) functionality and DRM protection. Why Is It Missing from GRID Autosport? Common reasons for this error include: Antivirus False Positives: One user who resolved their problem with this
The timing of the game’s release (2014) placed it at a transitional moment. Windows 10 and Windows 11 users often encounter compatibility issues that weren’t present on Windows 7 or Windows 8, the originally supported operating systems. As one user documented, installing DirectX 11 to fix a separate XINPUT1_3.dll error only revealed the steam_api.dll problem underneath—demonstrating how multiple issues can stack on top of one another.
The Essential Guide to Fixing SteamAPI.dll Errors in GRID Autosport Manual Installation: Download the
The safest way to get the original file back is through Steam. Do download standalone .dll files from unofficial sites, as they can contain malware. Open your Steam Library . Right-click GRID Autosport and select Properties . Go to the Installed Files tab (or Local Files ).