It prevents the file from being accidentally flagged or modified by basic web filters during the download process.
Only download system files from trusted community forums or official developer repositories. ScoobyUC164.dll.zip
If the app still doesn't work, it may need to go into C:\Windows\System32 (for 64-bit files) or C:\Windows\SysWOW64 (for 32-bit files). It prevents the file from being accidentally flagged