You can safely ignore the unsigned DLL, .OCX, .SCR, .CPL or .EXE files listed here that are not one of the app's main executable, ...

You can safely ignore the unsigned DLL, .OCX, .SCR, .CPL or .EXE files listed here that are not one of the app's main executable, or a driver. All files except drivers must be Authenticode signed, drivers must be WHQL certified. See link below for more information: