Usage: FileName [[Date] [Time]]
Where: Date is in the form MM-DD-YY
Time is in the form HH:MM:SS
If Date is ommitted, the current machine date is used
If Time is ommitted, the current machine time is used
Globals are allowed in FileName.
If the keyword NUL is used as the second parameter, date
and time are set to "NUL" which are not displayed by DOS.
If the second parameter is a file name, the first file date
and time are set to the date and time of the second file.