Determining actual elapsed (wall-clock) time

[Peter Hansen]

Roy Smith wrote:
> Peter Hansen <peter at engcorp.com> wrote:
>>I'll have to look into how to set up Windows XP to prevent users from 
>>changing the time on their own, assuming that's possible.
> 
> On a single-user system like Windows, you pretty much have to assume the 
> user can do anything.  They can turn off NTP, reset the clock, reboot the 
> system, uninstall your software, whatever.

Actually, I suspect that a non-administrator user can be restricted from 
doing several of those things under XP, which would simplify things.

And, in any case, I'm not remotely concerned about malicious users, just 
"fiddlers" who might think their watch time is somehow more correct than 
what the computer says...

-Peter