CreateProcessAsUser horror,...

=?iso-8859-1?B?S2VyZW0gR/xtcvxrY/w=?= <>
Thu, 25 Feb 2010 11:09:16 +0100

for whatever reason (and i am about to go nuts!) this
signatures dont work. Either i get a access violation
error or wrong parameter exception. Could someone
please help me and tell me what the hell is wrong here
and if possible show me a working example. These are
my signatures:

        internal enum CreateProcessCreationFlags : uint
            ZERO_FLAG = 0x00000000,
            CREATE_BREAKAWAY_FROM_JOB = 0x01000000,
            CREATE_DEFAULT_ERROR_MODE = 0x04000000,
            CREATE_NEW_CONSOLE = 0x00000010,
            CREATE_NEW_PROCESS_GROUP = 0x00000200,
            CREATE_NO_WINDOW = 0x08000000,
            CREATE_PROTECTED_PROCESS = 0x00040000,
            CREATE_PRESERVE_CODE_AUTHZ_LEVEL = 0x02000000,
            CREATE_SEPARATE_WOW_VDM = 0x00001000,
            CREATE_SHARED_WOW_VDM = 0x00001000,
            CREATE_SUSPENDED = 0x00000004,
            CREATE_UNICODE_ENVIRONMENT = 0x00000400,
            DEBUG_ONLY_THIS_PROCESS = 0x00000002,
            DEBUG_PROCESS = 0x00000001,
            DETACHED_PROCESS = 0x00000008,
            EXTENDED_STARTUPINFO_PRESENT = 0x00080000,
            INHERIT_PARENT_AFFINITY = 0x00010000

        internal enum StartupInfoStartupFlags : uint
            ZERO_FLAG = 0x00000000,
            STARTF_USESHOWWINDOW = 0x1,
            STARTF_USESIZE = 0x2,
            STARTF_USEPOSITION = 0x4,
            STARTF_USECOUNTCHARS = 0x8,
            STARTF_RUNFULLSCREEN = 0x20,
            STARTF_FORCEONFEEDBACK = 0x40,
            STARTF_USESTDHANDLES = 0x100,

        internal struct PROCESS_INFORMATION
            public IntPtr hProcess;
            public IntPtr hThread;
            public uint dwProcessId;
            public uint dwThreadId;

            CharSet = CharSet.Unicode)]
        internal class STARTUPINFO
            public uint cb;
            public string lpReserved;
            public string lpDesktop;
            public string lpTitle;
            public uint dwX;
            public uint dwY;
            public uint dwXSize;
            public uint dwYSize;
            public uint dwXCountChars;
            public uint dwYCountChars;
            public uint dwFillAttribute;
            public StartupInfoStartupFlags dwFlags;
            public ushort ShowWindow;
            public ushort Reserved2;
            public IntPtr Reserved3;
            public IntPtr StdInputHandle;
            public IntPtr StdOutputHandle;
            public IntPtr StdErrorHandle;

                CharSet = CharSet.Unicode,
                SetLastError = true)]
            [return: MarshalAs(UnmanagedType.Bool)]
            internal static extern bool CreateProcessAsUser(
                [In] IntPtr hToken,
                [In] string lpApplicationName,
                [In] string lpCommandLine,
                [In] IntPtr lpProcessAttributes,
                [In] IntPtr lpThreadAttributes,
                [In] bool bInheritHandles,
                [In] CreateProcessCreationFlags dwCreationFlags,
                [In] IntPtr lpEnvironment,
                [In] string lpCurrentDirectory,
                [In] ref STARTUPINFO lpStartupInfo,
                [Out] out PROCESS_INFORMATION lpProcessInfo);

The "hToken" is valid (confirmed and checked!) and the STARTUPINFO
has been initialized like this:

                STARTUPINFO si = new STARTUPINFO();
                si.cb = (uint) Marshal.SizeOf(typeof(STARTUPINFO));

The call looks like this:

                   if (CreateProcessAsUser(
                        hRestrictedToken, //valid token
                        appPath, //full path to the executable
                        cmdLine, //either null or command line params
                        IntPtr.Zero, //NULL pointer, use defaults
                        IntPtr.Zero, //NULL pointer, use defaults
                        false, //no inherit handles
                        CreateProcessCreationFlags.ZERO_FLAG, //zero flag,
use defaults
                        IntPtr.Zero, //inherit environment
                        null, //null directory
                        ref si, //ref to STARTUPINFO
                        out pi) == false) //out to PROCESS_INFORMATION
                        throw new Win32Exception();

Whatever i tried, "w-h-a-t e-v-e-r" i could not make it work!
Either i got a access violation or a wrong parameter for

Could someone please show me what i am doing wrong here,
or much better give me a working sample,...

Thanks in advance,...


Beste Gr?sse / Best regards / Votre bien devoue
Kerem G?mr?kc?
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