Help with using CreateProcessWithLogonW in C#

Question

I am trying to execute a console app with arguments inside asp.net (C#) on Windows XP. I have tried diagnostics.Process but I just can\'t get it to work so I am switching to

Answer 1

An example from pInvoke is defenitelly works, can you try it first with smth simple like ping? I've modified code from pInvoke to execute ping 127.0.0.1, please see below if it works for you. Answering your questions: 1 - I guess no need to do it but would work both ways, 2 - you can do it, but if the application doesn't start on the first place it wouldn't help you.

Sample code:

public const UInt32 Infinite = 0xffffffff;
public const Int32 Startf_UseStdHandles = 0x00000100;
public const Int32 StdOutputHandle = -11;
public const Int32 StdErrorHandle = -12;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public struct StartupInfo
{
    public int cb;
    public String reserved;
    public String desktop;
    public String title;
    public int x;
    public int y;
    public int xSize;
    public int ySize;
    public int xCountChars;
    public int yCountChars;
    public int fillAttribute;
    public int flags;
    public UInt16 showWindow;
    public UInt16 reserved2;
    public byte reserved3;
    public IntPtr stdInput;
    public IntPtr stdOutput;
    public IntPtr stdError;
}

public struct ProcessInformation
{
    public IntPtr process;
    public IntPtr thread;
    public int processId;
    public int threadId;
}


[DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
public static extern bool CreateProcessWithLogonW(
    String userName,
    String domain,
    String password,
    UInt32 logonFlags,
    String applicationName,
    String commandLine,
    UInt32 creationFlags,
    UInt32 environment,
    String currentDirectory,
    ref   StartupInfo startupInfo,
    out  ProcessInformation processInformation);

[DllImport("kernel32.dll", SetLastError = true)]
public static extern bool GetExitCodeProcess(IntPtr process, ref UInt32 exitCode);

[DllImport("Kernel32.dll", SetLastError = true)]
public static extern UInt32 WaitForSingleObject(IntPtr handle, UInt32 milliseconds);

[DllImport("Kernel32.dll", SetLastError = true)]
public static extern IntPtr GetStdHandle(IntPtr handle);

[DllImport("Kernel32.dll", SetLastError = true)]
public static extern bool CloseHandle(IntPtr handle);


private void button1_Click(object sender, RoutedEventArgs e)
{
    StartupInfo startupInfo = new StartupInfo();
    startupInfo.reserved = null;
    startupInfo.flags &= Startf_UseStdHandles;
    startupInfo.stdOutput = (IntPtr)StdOutputHandle;
    startupInfo.stdError = (IntPtr)StdErrorHandle;

    UInt32 exitCode = 123456;
    ProcessInformation processInfo = new ProcessInformation();

    String command = @"c:\windows\system32\ping.exe 127.0.0.1";
    String user = "admin";
    String domain = System.Environment.MachineName;
    String password = "password";
    String currentDirectory = System.IO.Directory.GetCurrentDirectory();

    try
    {
        CreateProcessWithLogonW(
            user,
            domain,
            password,
            (UInt32)1,
            null,
            command,
            (UInt32)0,
            (UInt32)0,
            currentDirectory,
            ref startupInfo,
            out processInfo);
    }
    catch (Exception ex)
    {
        Console.WriteLine(ex.ToString());
    }

    Console.WriteLine("Running ...");
    WaitForSingleObject(processInfo.process, Infinite);
    GetExitCodeProcess(processInfo.process, ref exitCode);

    Console.WriteLine("Exit code: {0}", exitCode);

    CloseHandle(processInfo.process);
    CloseHandle(processInfo.thread);
}

hope this helps, regards