John,

   I have done this kind of thing using WMI calls to a machine.  This will
work on any machine that can support WMI.  Microsoft has a downloadable
update on the MSDN site to allow Win 95/98/NT 4.0 machines to handle most of
the WMI calls.  I have had incredibly poor luck getting 9x machines to
handle WMI calls over a network but they do work great when the script runs
local.  Here is a very small code snippet along with a couple of links.

Sean

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnclinic/html/s
cripting06112002.asp

Option Explicit
'Very simply script to force a restart of a Winodows based machine using
WMI.
'This is only supported on Windows NT 4.0 SP4, Windows 2000,XP,2003

' Globals
Dim ManagedHost, Hmmm, i
'This is where you attach to a given machine.
Set ManagedHost = GetObject("winmgmts:\\" & "name of machine to shutdown" &
"\root\cimv2")

Set Hmmm = ManagedHost.ExecQuery("SELECT * FROM Win32_OperatingSystem")

For Each i in hmmm
i.Win32Shutdown(6)
Next

Hello,

I need to know from my VBS script if the computer where it
runs supports power-off feature. I think that's available
through IsPwrShutdownAllowed API call.

?Is it possible to make such a call from a VBS script?

?Is there any other way to know this?

Thank you