Windows 7 cannot shutdown code#
Windows 7 cannot shutdown windows#

The solution was for the process to request the privilege for itself. I had trouble trying to use the WMI method accepted above because i always got privilige not held exceptions despite running the program as an administrator.

Windows 7 cannot shutdown code#

In production code you should be checking the return values of the API calls, but I left that out to make the example clearer. Static extern int ExitWindowsEx(uint uFlags, uint dwReason) Static extern int LookupPrivilegeValue(string lpSystemName, Static extern bool AdjustTokenPrivileges(IntPtr TokenHandle,Д«ool DisableAllPrivileges, Int DesiredAccess, out IntPtr TokenHandle) Static extern int OpenProcessToken(IntPtr ProcessHandle,

Windows 7 cannot shutdown windows#

Now we have the privileges, shutdown Windows LookupPrivilegeValue('', SE_SHUTDOWN_NAME, out ) ДЄdjustTokenPrivileges(hToken, false, ref tkp, 0U, IntPtr.Zero, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, out hToken) OpenProcessToken(Process.GetCurrentProcess().Handle, using Д¬onst string SE_SHUTDOWN_NAME = 'SeShutdownPrivilege' Д¬onst short TOKEN_ADJUST_PRIVILEGES = 32 Use the ExitWindowsEx function from the Win32 API.

Ok = AdjustTokenPrivileges( htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero ) Ok = LookupPrivilegeValue( null, SE_SHUTDOWN_NAME, ref tp.Luid ) Ok = OpenProcessToken( hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok ) Internal const int EWX_FORCEIFHUNG = 0x00000010 Internal const int EWX_POWEROFF = 0x00000008 Internal const int EWX_FORCE = 0x00000004 Internal const int EWX_REBOOT = 0x00000002 Internal const int EWX_SHUTDOWN = 0x00000001 Internal const int EWX_LOGOFF = 0x00000000 Internal const string SE_SHUTDOWN_NAME = 'SeShutdownPrivilege' Internal const int TOKEN_ADJUST_PRIVILEGES = 0x00000020 Internal const int TOKEN_QUERY = 0x00000008 Internal const int SE_PRIVILEGE_ENABLED = 0x00000002 Internal static extern bool ExitWindowsEx( int flg, int rea ) Ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen ) Internal static extern bool AdjustTokenPrivileges( IntPtr htok, bool disall, Internal static extern bool LookupPrivilegeValue( string host, string name, Internal static extern bool OpenProcessToken( IntPtr h, int acc, ref IntPtr Internal static extern IntPtr GetCurrentProcess() This thread provides the code necessary: Д«ut here's the relevant code: using