GetTickCount gives you the number of milliseconds since boot. It wraps
around after about 50 days.
I don't thinl there is any easy way to get this. It wouldn't be hard to
create a file during shutdown which you could later use by reading its time
We already know it is abysmal! With one exception, every PC I've dealt
with has been significantly off. The exception is my notebook computer
which (by pure chance I'm sure) has been more accurate then the best watch
I've every owned.
-GJC [MS Windows SDK MVP]
-Software Consultant (Embedded systems and Real Time Controls)