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("user32.dll", SetLastError=true)]
static extern bool ExitWindowsEx(uint uFlags, uint dwReason);

[DllImport("advapi32.dll", SetLastError=true)]
static extern bool AdjustTokenPrivileges(IntPtr TokenHandle, bool
DisableAllPrivileges, ref TOKEN_PRIVILEGES NewState, UInt32 BufferLength,
IntPtr PreviousState, IntPtr ReturnLength);

[DllImport("advapi32.dll", SetLastError=true)]
static extern bool OpenProcessToken(IntPtr ProcessHandle, UInt32
DesiredAccess,
ref IntPtr TokenHandle);

[DllImport("kernel32.dll")]
static extern IntPtr GetCurrentProcess();

[DllImport("advapi32.dll")]
static extern bool LookupPrivilegeValue(string lpSystemName, string
lpName, ref LUID lpLuid);
//-----------------------------------------------

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

struct TOKEN_PRIVILEGES
{
public int PrivilegeCount;
public LUID_AND_ATTRIBUTES Privileges;
}

struct LUID_AND_ATTRIBUTES
{
public LUID Luid;
public long Attributes;
}

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

private bool ExitWindows(uint m_Flag)
{
const int TOKEN_QUERY = 0x0008;
const int TOKEN_ADJUST_PRIVILEGE = 0x0020;
const long SE_PRIVILEGE_ENABLED = 0x00000002L;
const string SE_SHUTDOWN_NAME = "SeShutdownPrivilege";

IntPtr hToken = IntPtr.Zero;
TOKEN_PRIVILEGES tkp = new TOKEN_PRIVILEGES();

if( !OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGE |
TOKEN_QUERY, ref hToken) )
return false;

if( !LookupPrivilegeValue(null, SE_SHUTDOWN_NAME, ref tkp.Privileges.Luid) )
throw new SystemException(Marshal.GetLastWin32Error().ToStri ng());

tkp.PrivilegeCount = 1;
tkp.Privileges.Attributes = SE_PRIVILEGE_ENABLED;

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

if( !ExitWindowsEx(m_Flag, 0) )
throw new SystemException(Marshal.GetLastWin32Error().ToStri ng());
return true;
}

[Willy Denoyette [MVP]]

"Mohammad-Reza" <Mo**********@discussions.microsoft.com> wrote in message
news:18**********************************@microsof t.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("user32.dll", SetLastError=true)]
static extern bool ExitWindowsEx(uint uFlags, uint dwReason);

[DllImport("advapi32.dll", SetLastError=true)]
static extern bool AdjustTokenPrivileges(IntPtr TokenHandle, bool
DisableAllPrivileges, ref TOKEN_PRIVILEGES NewState, UInt32 BufferLength,
IntPtr PreviousState, IntPtr ReturnLength);

[DllImport("advapi32.dll", SetLastError=true)]
static extern bool OpenProcessToken(IntPtr ProcessHandle, UInt32
DesiredAccess,
ref IntPtr TokenHandle);

[DllImport("kernel32.dll")]
static extern IntPtr GetCurrentProcess();

[DllImport("advapi32.dll")]
static extern bool LookupPrivilegeValue(string lpSystemName, string
lpName, ref LUID lpLuid);
//-----------------------------------------------

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

struct TOKEN_PRIVILEGES
{
public int PrivilegeCount;
public LUID_AND_ATTRIBUTES Privileges;
}

struct LUID_AND_ATTRIBUTES
{
public LUID Luid;
public long Attributes;
}

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

private bool ExitWindows(uint m_Flag)
{
const int TOKEN_QUERY = 0x0008;
const int TOKEN_ADJUST_PRIVILEGE = 0x0020;
const long SE_PRIVILEGE_ENABLED = 0x00000002L;
const string SE_SHUTDOWN_NAME = "SeShutdownPrivilege";

IntPtr hToken = IntPtr.Zero;
TOKEN_PRIVILEGES tkp = new TOKEN_PRIVILEGES();

if( !OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGE |
TOKEN_QUERY, ref hToken) )
return false;

if( !LookupPrivilegeValue(null, SE_SHUTDOWN_NAME, ref
tkp.Privileges.Luid) )
throw new SystemException(Marshal.GetLastWin32Error().ToStri ng());

tkp.PrivilegeCount = 1;
tkp.Privileges.Attributes = SE_PRIVILEGE_ENABLED;

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

if( !ExitWindowsEx(m_Flag, 0) )
throw new SystemException(Marshal.GetLastWin32Error().ToStri ng());
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_PRIVILEGES
{
public int PrivilegeCount;
public LUID_AND_ATTRIBUTES Privileges;
}

struct LUID_AND_ATTRIBUTES
{
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_OperatingSystem 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 WindowsController 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->Administrative 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**********@discussions.microsoft.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("user32.dll", SetLastError=true)]
static extern bool ExitWindowsEx(uint uFlags, uint dwReason);

[DllImport("advapi32.dll", SetLastError=true)]
static extern bool AdjustTokenPrivileges(IntPtr TokenHandle, bool
DisableAllPrivileges, ref TOKEN_PRIVILEGES NewState, UInt32 BufferLength,
IntPtr PreviousState, IntPtr ReturnLength);

[DllImport("advapi32.dll", SetLastError=true)]
static extern bool OpenProcessToken(IntPtr ProcessHandle, UInt32
DesiredAccess,
ref IntPtr TokenHandle);

[DllImport("kernel32.dll")]
static extern IntPtr GetCurrentProcess();

[DllImport("advapi32.dll")]
static extern bool LookupPrivilegeValue(string lpSystemName, string
lpName, ref LUID lpLuid);
//-----------------------------------------------

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

struct TOKEN_PRIVILEGES
{
public int PrivilegeCount;
public LUID_AND_ATTRIBUTES Privileges;
}

struct LUID_AND_ATTRIBUTES
{
public LUID Luid;
public long Attributes;
}

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

private bool ExitWindows(uint m_Flag)
{
const int TOKEN_QUERY = 0x0008;
const int TOKEN_ADJUST_PRIVILEGE = 0x0020;
const long SE_PRIVILEGE_ENABLED = 0x00000002L;
const string SE_SHUTDOWN_NAME = "SeShutdownPrivilege";

IntPtr hToken = IntPtr.Zero;
TOKEN_PRIVILEGES tkp = new TOKEN_PRIVILEGES();

if( !OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGE |
TOKEN_QUERY, ref hToken) )
return false;

if( !LookupPrivilegeValue(null, SE_SHUTDOWN_NAME, ref
tkp.Privileges.Luid) )
throw new SystemException(Marshal.GetLastWin32Error().ToStri ng());

tkp.PrivilegeCount = 1;
tkp.Privileges.Attributes = SE_PRIVILEGE_ENABLED;

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

if( !ExitWindowsEx(m_Flag, 0) )
throw new SystemException(Marshal.GetLastWin32Error().ToStri ng());
return true;
}

--
Regards,
Nurchi BECHED