Because this file is not signed by a major developer like Microsoft or Adobe, and because it is distributed via unofficial channels (torrents, warez sites, cracked software forums), it is a prime vehicle for malware.
Security software frequently flags and deletes it as a "Trojan" or "Generic Malware". This is often a false positive due to its role in bypassing software protection, though users are advised to only trust files from reputable repackers. orangeemu.dll
If you suspect malware or cannot delete the file because it is "in use": Because this file is not signed by a