This dll is required by Logger Pro for video functions. Some versions of Windows do not include the Windows Media Feature Pack, so it needs to be installed.

Users of Windows N (European Markets) and KN (Korea) editions do not include the Windows Media Feature Pack (Media Player) and launching Logger Pro 3.12 and newer may cause these errors:
MFPlat.DLL is missing from your computer
MFReadWrite.DLL is missing from your computer

This is relevant to Windows 7 or newer.

For older OSes you can fix this issue by downloading the Media Feature Pack from the Microsoft website:
https://www.microsoft.com/en-us/software-download/mediafeaturepack

But for Windows 10 version 1903 and later, you add the Media Feature Pack by going to Start Settings > Apps > Apps and features > Optional features > Add a feature, and then locate Media Feature Pack