How to open an executable that requires elevation via C#?

Question

How to open an executable that requires elevation via C#?

The code provided below seeks to be able to open an executable file in such a way that it is possible to pass arguments to it once it has been opened.

For the code as it is presented, Error returned is:

Untreated exception: the requested operation requires elevation

Already when configured p.StartInfo.UseShellExecute = true, the Error returned is:

Exception without treatment: the process object must have the property Useshellexecute set to false to be able to redirect I/O streams.

With this in mind, excluding redirectors and therefore the argument that would be passed to the executable, only in this scenario is it possible to open the executable. A first positive result, but not yet satisfactory.

private void CreatePorts(object sender, EventArgs e)
{
    // Start the child process.
    Process p = new Process();
    //Set parameters to redirect input/output from the application
    p.StartInfo.UseShellExecute = false;
    p.StartInfo.RedirectStandardOutput = true;
    p.StartInfo.RedirectStandardInput = true;
    p.StartInfo.LoadUserProfile = true;            
    p.StartInfo.Verb = "runas";

    //Hide the application window
    //p.StartInfo.CreateNoWindow = true;


    //Set the Application Path and Working to directory to the location of setupc.exe 
    p.StartInfo.WorkingDirectory = @"C:\Program Files (x86)\com0com";
    p.StartInfo.FileName = @"setupc.exe";

    //Append command and flags and execute the process
    p.StartInfo.Arguments = "list";
    p.Start();

    string output = "";

    output += p.StandardOutput.ReadToEnd() + "\r\n";
    Console.WriteLine(output);    
    p.WaitForExit();            
}

3

windows c#.net processo permissões

Author: Maniero, 2018-09-27

Source

1 answers

score 2 · Accepted Answer

Second this answer in the SO :

if (!IsAdministrator()) {
    // Restart program and run as admin
    var exeName = System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName;
    ProcessStartInfo startInfo = new ProcessStartInfo(exeName);
    startInfo.Verb = "runas";
    System.Diagnostics.Process.Start(startInfo);
    Application.Current.Shutdown();
    return;
}
private static bool IsAdministrator() {
    WindowsIdentity identity = WindowsIdentity.GetCurrent();
    WindowsPrincipal principal = new WindowsPrincipal(identity);
    return principal.IsInRole(WindowsBuiltInRole.Administrator);
}

I put on GitHub for future reference.

But they suggested something apparently better in another answer.