Shutdown problem

[Mohammad-Reza]

Hi everybody
I want to shutdown my computer with my program.
I searched in MSDN to find a .NET method that can do that but did'nt find
anything but ExitWindowsEx Api.
I write following codes to execute this api but every time i use it, I see
an error message.
Error:1314 " A required privilege is not held by the client. ".
Please tell me what did I wrong.
Thanks in advance.

[DllImport("user 32.dll", SetLastError=tr ue)]
static extern bool ExitWindowsEx(u int uFlags, uint dwReason);

[DllImport("adva pi32.dll", SetLastError=tr ue)]
static extern bool AdjustTokenPriv ileges(IntPtr TokenHandle, bool
DisableAllPrivi leges, ref TOKEN_PRIVILEGE S NewState, UInt32 BufferLength,
IntPtr PreviousState, IntPtr ReturnLength);

[DllImport("adva pi32.dll", SetLastError=tr ue)]
static extern bool OpenProcessToke n(IntPtr ProcessHandle, UInt32
DesiredAccess,
ref IntPtr TokenHandle);

[DllImport("kern el32.dll")]
static extern IntPtr GetCurrentProce ss();

[DllImport("adva pi32.dll")]
static extern bool LookupPrivilege Value(string lpSystemName, string
lpName, ref LUID lpLuid);
//-----------------------------------------------

struct LUID
{
public long LowPart;
public long HighPart;
}

struct TOKEN_PRIVILEGE S
{
public int PrivilegeCount;
public LUID_AND_ATTRIB UTES Privileges;
}

struct LUID_AND_ATTRIB UTES
{
public LUID Luid;
public long Attributes;
}

//-------------------------------------------------

private bool ExitWindows(uin t m_Flag)
{
const int TOKEN_QUERY = 0x0008;
const int TOKEN_ADJUST_PR IVILEGE = 0x0020;
const long SE_PRIVILEGE_EN ABLED = 0x00000002L;
const string SE_SHUTDOWN_NAM E = "SeShutdownPriv ilege";

IntPtr hToken = IntPtr.Zero;
TOKEN_PRIVILEGE S tkp = new TOKEN_PRIVILEGE S();

if( !OpenProcessTok en(GetCurrentPr ocess(), TOKEN_ADJUST_PR IVILEGE |
TOKEN_QUERY, ref hToken) )
return false;

if( !LookupPrivileg eValue(null, SE_SHUTDOWN_NAM E, ref tkp.Privileges. Luid) )
throw new SystemException (Marshal.GetLas tWin32Error().T oString());

tkp.PrivilegeCo unt = 1;
tkp.Privileges. Attributes = SE_PRIVILEGE_EN ABLED;

if( !AdjustTokenPri vileges(hToken, false, ref tkp, 0, IntPtr.Zero,
IntPtr.Zero) )
return false;

if( !ExitWindowsEx( m_Flag, 0) )
throw new SystemException (Marshal.GetLas tWin32Error().T oString());
return true;
}

[Willy Denoyette [MVP]]

"Mohammad-Reza" <Mo**********@d iscussions.micr osoft.com> wrote in message
news:18******** *************** ***********@mic rosoft.com...

Hi everybody
I want to shutdown my computer with my program.
I searched in MSDN to find a .NET method that can do that but did'nt find
anything but ExitWindowsEx Api.
I write following codes to execute this api but every time i use it, I see
an error message.
Error:1314 " A required privilege is not held by the client. ".
Please tell me what did I wrong.
Thanks in advance.

[DllImport("user 32.dll", SetLastError=tr ue)]
static extern bool ExitWindowsEx(u int uFlags, uint dwReason);

[DllImport("adva pi32.dll", SetLastError=tr ue)]
static extern bool AdjustTokenPriv ileges(IntPtr TokenHandle, bool
DisableAllPrivi leges, ref TOKEN_PRIVILEGE S NewState, UInt32 BufferLength,
IntPtr PreviousState, IntPtr ReturnLength);

[DllImport("adva pi32.dll", SetLastError=tr ue)]
static extern bool OpenProcessToke n(IntPtr ProcessHandle, UInt32
DesiredAccess,
ref IntPtr TokenHandle);

[DllImport("kern el32.dll")]
static extern IntPtr GetCurrentProce ss();

[DllImport("adva pi32.dll")]
static extern bool LookupPrivilege Value(string lpSystemName, string
lpName, ref LUID lpLuid);
//-----------------------------------------------

struct LUID
{
public long LowPart;
public long HighPart;
}

struct TOKEN_PRIVILEGE S
{
public int PrivilegeCount;
public LUID_AND_ATTRIB UTES Privileges;
}

struct LUID_AND_ATTRIB UTES
{
public LUID Luid;
public long Attributes;
}

//-------------------------------------------------

private bool ExitWindows(uin t m_Flag)
{
const int TOKEN_QUERY = 0x0008;
const int TOKEN_ADJUST_PR IVILEGE = 0x0020;
const long SE_PRIVILEGE_EN ABLED = 0x00000002L;
const string SE_SHUTDOWN_NAM E = "SeShutdownPriv ilege";

IntPtr hToken = IntPtr.Zero;
TOKEN_PRIVILEGE S tkp = new TOKEN_PRIVILEGE S();

if( !OpenProcessTok en(GetCurrentPr ocess(), TOKEN_ADJUST_PR IVILEGE |
TOKEN_QUERY, ref hToken) )
return false;

if( !LookupPrivileg eValue(null, SE_SHUTDOWN_NAM E, ref
tkp.Privileges. Luid) )
throw new SystemException (Marshal.GetLas tWin32Error().T oString());

tkp.PrivilegeCo unt = 1;
tkp.Privileges. Attributes = SE_PRIVILEGE_EN ABLED;

if( !AdjustTokenPri vileges(hToken, false, ref tkp, 0, IntPtr.Zero,
IntPtr.Zero) )
return false;

if( !ExitWindowsEx( m_Flag, 0) )
throw new SystemException (Marshal.GetLas tWin32Error().T oString());
return true;
}

long in .NET is 64 bit, so, all long's in this part of the code should be
int's!

struct LUID
{
public long LowPart;
public long HighPart;
}

struct TOKEN_PRIVILEGE S
{
public int PrivilegeCount;
public LUID_AND_ATTRIB UTES Privileges;
}

struct LUID_AND_ATTRIB UTES
{
public LUID Luid;
public long Attributes;
}

Willy.

[Elp]

On Wed, 15 Dec 2004 11:39:02 -0800, Mohammad-Reza wrote:

Hi everybody
I want to shutdown my computer with my program.
I searched in MSDN to find a .NET method that can do that but did'nt find
anything but ExitWindowsEx Api.
You can also use WMI to do that using the Win32Shutdown
method of the Win32_Operating System class. You need to have WMI installed
on the machine running your application though. It's built-in under Windows
ME, 2000 and above but needs to be installed separately under Windows 98
and NT 4.
I write following codes to execute this api but every time i use it, I see
an error message.
Error:1314 " A required privilege is not held by the client. ".
Please tell me what did I wrong.

You can also use the WindowsControll er library that already contains all
the needed interop declaration if you want to be sure that you have made no
mistakes in your code:
http://www.mentalis.org/soft/class.qpx?id=7

If you still get this error using this library, then your application may
not have the rights to shutdown your computer. Others may be more
knowledgeable than me to find a solution for this privilege problem.

[Nurchi BECHED]

Hey,

This could be a solution to your problem
(If you don't use Windows XP, you might have to look for this)
ControlPanel->Administrati ve tools->Microsoft .NET Framework 1.1 Wizards
Just play with it...
There was an example from Microsoft website
showing how .NET security works:
You have a simple application that creates
a text file on your C: drive.
When you compile and run the program locally,
it works just fine.
Now, put it on any website, download and run,
there is a security exception.

Your program for some reason might not have enough
priveleges to shutdown your PC

Just play with "Trust an assembly"
Choose your program and set the appropriate permissions...

I hope this helps.
Good luck.
On Wed, 15 Dec 2004 11:39:02 -0800, Mohammad-Reza
<Mo**********@d iscussions.micr osoft.com> wrote:

Hi everybody
I want to shutdown my computer with my program.
I searched in MSDN to find a .NET method that can do that but did'nt find
anything but ExitWindowsEx Api.
I write following codes to execute this api but every time i use it, I
see
an error message.
Error:1314 " A required privilege is not held by the client. ".
Please tell me what did I wrong.
Thanks in advance.

[DllImport("user 32.dll", SetLastError=tr ue)]
static extern bool ExitWindowsEx(u int uFlags, uint dwReason);

[DllImport("adva pi32.dll", SetLastError=tr ue)]
static extern bool AdjustTokenPriv ileges(IntPtr TokenHandle, bool
DisableAllPrivi leges, ref TOKEN_PRIVILEGE S NewState, UInt32 BufferLength,
IntPtr PreviousState, IntPtr ReturnLength);

[DllImport("adva pi32.dll", SetLastError=tr ue)]
static extern bool OpenProcessToke n(IntPtr ProcessHandle, UInt32
DesiredAccess,
ref IntPtr TokenHandle);

[DllImport("kern el32.dll")]
static extern IntPtr GetCurrentProce ss();

[DllImport("adva pi32.dll")]
static extern bool LookupPrivilege Value(string lpSystemName, string
lpName, ref LUID lpLuid);
//-----------------------------------------------

struct LUID
{
public long LowPart;
public long HighPart;
}

struct TOKEN_PRIVILEGE S
{
public int PrivilegeCount;
public LUID_AND_ATTRIB UTES Privileges;
}

struct LUID_AND_ATTRIB UTES
{
public LUID Luid;
public long Attributes;
}

//-------------------------------------------------

private bool ExitWindows(uin t m_Flag)
{
const int TOKEN_QUERY = 0x0008;
const int TOKEN_ADJUST_PR IVILEGE = 0x0020;
const long SE_PRIVILEGE_EN ABLED = 0x00000002L;
const string SE_SHUTDOWN_NAM E = "SeShutdownPriv ilege";

IntPtr hToken = IntPtr.Zero;
TOKEN_PRIVILEGE S tkp = new TOKEN_PRIVILEGE S();

if( !OpenProcessTok en(GetCurrentPr ocess(), TOKEN_ADJUST_PR IVILEGE |
TOKEN_QUERY, ref hToken) )
return false;

if( !LookupPrivileg eValue(null, SE_SHUTDOWN_NAM E, ref
tkp.Privileges. Luid) )
throw new SystemException (Marshal.GetLas tWin32Error().T oString());

tkp.PrivilegeCo unt = 1;
tkp.Privileges. Attributes = SE_PRIVILEGE_EN ABLED;

if( !AdjustTokenPri vileges(hToken, false, ref tkp, 0, IntPtr.Zero,
IntPtr.Zero) )
return false;

if( !ExitWindowsEx( m_Flag, 0) )
throw new SystemException (Marshal.GetLas tWin32Error().T oString());
return true;
}

--
Regards,
Nurchi BECHED