'net statistics' may very well work differently on Win XP Pro. I ran it on NT 4.0 and Windows 2000 and each time the output provided a line that said "Statistics Since {some date} {some time}". This line was set to the current date and time when the box was rebooted.

Either way WinXP is not a concern. That's a recent Windows OS. We don't do recent where I am at, as you can tell by the old Perl 4 install. ;-)