I like using linux a lot and the thing I really miss when using windows is uptime. I found out that there is a systeminfo command line tool that among other things give you the System Up Time info. Here's a batch file script that you can put down quickly to just extract the System Up Time using the systeminfo command line tool.
@systeminfo | @find "System Up Time:"@pause
Better still, just download this
Uptime.exe and run it on your XP Pro/Home machine. Don't worry about what the System Requirements section says, it runs just fine on XP. Here's the output:
C:\>uptime
\\telesto has been up for: 40 day(s), 4 hour(s), 29 minute(s), 13 second(s)
Pretty impressivs uptime for an xp box, eh?
Also try uptime /s for some other cool stats.