In VFP 9.0 the following Library Support Files (and others) are not specifically mentioned in the Help file::

VFP9R.DLL
VFPRENU.DLL (English language)
VFP9T.DLL

I'd like to know the specific purpose of each of the above DLL files. I know that they contain code to run various functionality of FoxPro, but is there anything written anywhere that lends to more detail on them?