They are part of the runtime libraries needed for the C++ code that was used to write VFP. They need to be included in your distribution set and not overwritten if the user already has a newer version of the files on their machine.

>I had had an error message saying I was overwritting newer files copying MSVCRT.DLL and MSVCRT40.DLL in distribution disks.
>
>What task these files perform?
>Indeed, are they needed or may I exclude them?