steam_api64r.dll is a dynamic link library file that is part of the Steam Client API developed by Valve Corporation. It is used by games and applications that run on the Steam platform to communicate with the Steam client and perform various functions such as authentication, matchmaking, and in-game achievements.
If the steam_api64r.dll file is missing or encounters an error, it can cause issues with running games or applications that depend on it. Some possible solutions to fix the issue include:
1. Reinstalling the game or application that is giving the error to replace the missing or corrupt steam_api64r.dll file.
2. Verifying the integrity of the game files through the Steam client to ensure that all necessary files, including steam_api64r.dll, are present and correct.
3. Running a virus scan to check for any malware that may have corrupted or removed the steam_api64r.dll file.
4. Updating the Steam client to the latest version to ensure compatibility with the game or application that is giving the error.
The "api64r" in the filename "steam_api64r.dll" indicates that the file is part of the Steam Client API for 64-bit systems. The "r" at the end of the filename is most likely a version or revision identifier, indicating a specific version of the Steam Client API.