[VB.NET] Remote Shutdown

[JK1150]

I want to make a VB program to be a front end to the shutdown command. Basically, I want to run the following command:

shutdown /s /m \\Lab-1 /t 600 /f

I was able to do this with the following code:

Dim WshShell = CreateObject("WScript.Shell")

WshShell.Exec("shutdownm \\Lab-1 /t 600 /f")

The only thing is that:

A) This opens a command window, which I don't want the end user to see.

B) I want to know how to receive the result of this command, so I know if it was successful or if it failed.

[jake1eye]

  JK1150 said:

I want to make a VB program to be a front end to the shutdown command. Basically, I want to run the following command:

shutdown /s /m \\Lab-1 /t 600 /f

I was able to do this with the following code:

Dim WshShell = CreateObject("WScript.Shell")

WshShell.Exec("shutdownm \\Lab-1 /t 600 /f")

The only thing is that:

A) This opens a command window, which I don't want the end user to see.

B) I want to know how to receive the result of this command, so I know if it was successful or if it failed.

Try this to hide anything

  Quote

Dim WshShell = CreateObject("WScript.Shell")
WshShell.Exec("shutdownm \\Lab-1 /t 600 /f"),0,True

I do not know if this is what you want, but it pings the computer

  Quote

strComputer = "."
Set objWMIService = GetObject(_ 
	"winmgmts:\\" & strComputer & "\root\cimv2")
Set colPings = objWMIService.ExecQuery _
	("Select * From Win32_PingStatus where Address = 'PLACE_IP_ADDRESS_HERE'")

For Each objStatus in colPings
	If IsNull(objStatus.StatusCode) _
		or objStatus.StatusCode<>0 Then 
		WScript.Echo "Computer did not respond." 
	Else
		Wscript.Echo "Computer responded."
	End If
Next

[JK1150]

Thanks for both of those, they'll definitely help. I was wondering if the result of the command can be returned to with a .toString. For instance, if a "Network path not found." reply is returned, I want the user to know about that.

Also if I do

Dim WshShell = CreateObject("WScript.Shell")

WshShell.Exec("shutdownm \\Lab-1 /t 600 /f"),0,True

I get an end of statement expected on ,0,True, when I put it inside the brackets, the command does not seem to execute.

[The_Decryptor Veteran]

There is an API available to shutdown the local and remote systems, give you a bit more control than just invoking WSH.

Anyway, API call is InitiateSystemShutdown, this single API allows timed shutdowns, instant shutdowns, reboots, shutdowns with messages, remote shutdown, etc., everything you will need, and AbortSystemShutdown (of course) can abort the timed shutdown.

Just pass null to the computer name to target the local system.

I have some old VB6 code that could handle it (would automatically attempt to get the privileges for it, if not it would fail nicely), but looking at it now, I see that it would be a problem converting it to .NET

[JK1150]

decryptor, i seem to be getting a stack overflow whenever i implement that... weird...

[The_Decryptor Veteran]

Mind showing the code? cause that's quite odd.

[JK1150]

	Private Declare Function InitiateSystemShutdown Lib "advapi32.dll" Alias "InitiateSystemShutdownA" ( _
		ByVal lpMachineName As String, _
		ByVal lpMessage As String, _
		ByVal dwTimeout As Long, _
		ByVal bForceAppsClosed As Long, _
		ByVal bRebootAfterShutdown As Long _
	) As Long

	Private Declare Function AbortSystemShutdown Lib "advapi32.dll" Alias "AbortSystemShutdownA" _
	  (ByVal lpMachineName As String) As Long

	Public Sub goShutDownLab()
		Try
			InitiateSystemShutdown("Lab-Computer-1", "Lab will shut down in 10 minutes", 600, 1, 0)

That's the part with the shutdown, everything else works fine.

[The_Decryptor Veteran]

Could try this.

<DllImport("advapi32.dll", SetLastError:=True)> _
Public Shared Function InitiateSystemShutdown(ByVal lpMachineName As String,ByVal lpMessage As String, ByVal dwTimeout As Integer, ByVal bForceAppsClosed As Boolean, ByVal bRebootAfterShutdown As Boolean) As Boolean
End Function

Or this to save time.

http://www.mentalis.org/soft/class.qpx?id=7