: Most antivirus software, including Windows Defender , flags modified DLLs as "False Positives" because they involve reverse engineering or modifying protected files.
To prevent the file from being deleted again after an update: steamapirajasdll updated
In standard gaming, the official Steam API DLL is a library required for Steam game authentication. When you launch a game, it uses this file to communicate with Steam and confirm you own the title. : Most antivirus software, including Windows Defender ,