I used the InitiateSystemShutdownA to shut down PCs and AbortSystemShutdownA to abort.

But I can't get it to shut down or abort shutdown of the local PC.

Is there a way to do this on the local PC?

Try this link:
http://www.mvps.org/vbnet/index.html?code/system/exitwindowsex.htm

on a local on xp its shutdown -whatever goto start > run > type command > type shutdown /? it will ggive u the commands and then type net view to see the other people comp (net use x:computername then look in run browre and u have all their stuff u can add files on etc heh heh delete files and folder when ur done just delete X: and no 1 will know its u lol)if u dont understand email me and ill expolain it and tell me if u like the net use x: thing  

[Edited by ErrorNow on 26-07-2003 at 06:05 AM GMT]