Definition, use and application of multi net

Hi,
Hi there, may I ask what is Multi Net? What is multinet.exe changeparams? Are these two related and will only work if they are in tandem? What are the functions and importance of this software—Multi Net? Is it related with time on the computer applications? The IT guy at the store told me that the switch time operated by multinet.exe changeparams is essential; but could not explain exactly why. Is there an ideal quantity or specific numeral for the alternate time? Please advice. Thanks in advance.
