启动过程时出现System.ComponentModel.Win32Exception-找不到文件，但是文件存在

Question

I am trying to create a manager for my autostarts. It should read an XML file and then start my programs with a custom delay. For example:

<startup id="0">
    <name>Realtek Audio Manager</name>
    <process arguments="-s">C:\Program Files\Realtek\Audio\HDA\RtkNGUI64.exe</process>
    <delay>5</delay>
</startup>

This runs the specified process ( C:\\Program Files\\...\\RtkNGUI64.exe -s ) after 5 seconds.

Now, three of the programs won't start, giving me a System.ComponentModel.Win32Exception : "Das System kann die angegebene Datei nicht finden." ("The system was not able to find the specified file.")

But the XML is parsed correctly, and the file I want to start is at the location I specified in the XML file.

The problem concerns only these three files:
Intel HotkeysCmd - C:\\Windows\\System32\\hkcmd.exe
Intel GFX Tray - C:\\Windows\\System32\\igfxtray.exe
Intel Persistance - C:\\Windows\\System32\\igfxpers.exe

I think that the problem comes from the location of the files: they all are located in C:\\Windows\\System32, and all the other, working programs are located outside (C:\\Program Files, C:\\Program Files (x86), D:\\Program Files, %AppData% )

Do I have to give my program some kind of access rights to start programs in C:\\Windows\\System32? How would I do that?

If not, what could be the reason I get errors with these programs?

EDIT - my code:

delegate(object o)
{
    var s = (Startup) o;
    var p = new System.Diagnostics.Process
                {
                    StartInfo =
                        new System.Diagnostics.ProcessStartInfo(s.Process, s.Arguments)
                };
    try
    {
        s.Process = @"C:\Windows\System32\igfxtray.exe"; // For debugging purposes
        System.Diagnostics.Process.Start(s.Process);
        icon.ShowBalloonTip(2000, "StartupManager",
                            "\"" + s.Name + "\" has been started.",
                            System.Windows.Forms.ToolTipIcon.Info);
    }
    catch (System.ComponentModel.Win32Exception)
    {
        icon.ShowBalloonTip(2000, "StartupManager",
                            "\"" + s.Name + "\" could not be found.",
                            System.Windows.Forms.ToolTipIcon.Error);
    }
}

Answer 1

Clearly you are using a 64-bit version of Windows. The c:\\windows\\system32 and c:\\program files directories are subject to a feature called "file system redirection". It is an appcompat feature, it helps to ensure that 32-bit processes don't try to use 64-bit executables. They'll get redirected to c:\\windows\\syswow64 and c:\\program files (x86).

So when you try to start a file in c:\\program files\\realtek\\etcetera, your 32-bit program will be redirected to c:\\program files (x86)\\realtek\\etcetera. A directory that doesn't exist, kaboom. Same ingredient for igfxtray.exe

You'll need to change your program's platform target so it can run as a native 64-bit process and avoid the redirection problem you now have. Project + Properties, Build tab, change the "Platform target" setting to AnyCPU.