I would like to learn the basic "processing path" for the completion of I/O that started with the opening of a file named using UNC and resident on another machine.

I know from a MSKB article that VFP "passes the path to the operating system by using the appropriate API." in order to resolve access to the file specified.

Using a utility called Filemon, which "monitors and displays all file system activity on a system", I tried something simple. On a machine with a specific table on it I fired it up and set its monitoring in motion. Then, on another machine, I started the same utility but told it to monitor only activity for a specific file name. Once that was done I started VFP and did a USE to the specific table on the other machine, using a UNC path to do so. The table opened as expected. Then I executed a SET ORDER TO followed by a SEEK, then a BROWSE.
I was surprised by the Filemon results obtained.
The log on the system where I executed the commands showed all kinds of file I/O activity. The log on the system where the file resided showed NO FILE ACTIVITY of any kind!?!?

The reason for my surprise is the following observation of several months ago:
I had a Win98SE system with ZipMagic active on it. From a Win2K machine's Explorer window I accessed the zipped VFP xsource file on the Win98SE machine and rt-clicked a "Copy". The I moved the mouse to the directory that I had made and named VFP7 XSOURCE and rt-clicked "Paste". To my surprise the Win2K system's directory did NOT contain the zipped files, but rather fully decompressed versions of all of the files and their sub-directories! I could only conclude that ZipMagic had done its thing, indicating for sure that the Win98 system had to participate in the processing to transfer the files. Of course I had no Filemon utility back then.
And logic also says that the PC where the file resides has to play a part in reading it (or writing to it) for another system.

So the queston is, what are the processes involved in successfully completing UNC-designated I/O operations between two systems?

Thanks