Question

I have a very interesting problem.

I use Process.Start with the “runas” verb to run a process as administrator ie.

string currentstatus;
            ProcessStartInfo startInfo = new ProcessStartInfo();
            Process myprocess = new Process();
            try
            {
                startInfo.FileName = "cmd"; //
                startInfo.Verb = "runas";
                startInfo.Arguments = "/env /user:" + "Administrator" + " cmd";
                startInfo.RedirectStandardInput = true;
                startInfo.RedirectStandardOutput = true;
                startInfo.UseShellExecute = false; //'required to redirect
                startInfo.CreateNoWindow = true; // '<---- creates no window, obviously
                myprocess.StartInfo = startInfo; //
                myprocess.Start(); //
                System.IO.StreamReader SR;
                System.IO.StreamWriter SW;
                Thread.Sleep(200);
                SR = myprocess.StandardOutput;
                SW = myprocess.StandardInput;
                SW.WriteLine(commandexecuted); // 'the command you wish to run.....
                SW.WriteLine("exit"); // 'exits command prompt window
                Thread.Sleep(200);
                currentstatus = SR.ReadToEnd();

                SW.Close();
                SR.Close();

            }
            catch (Exception e)
            { }

Which said to have command executed is given as

exp *****/******@!!!!!!! owner =!!!!!!!! file =D:/SS.dmp

now my problem is

1) when i run the above query manually by right clicking the cmd.exe and choose “Run as administrator ” it works fine but with out it it throws me the error

2) so i need to execute that process through code.

i do not know where i went wrong?

is this only the way to take oracle dump or else it might be having some other way?

waiting for your valuable response and comments…..

updated 1)

I too use this code to check whether the current user is administrator or not through

    private static bool IsAdministrator()
{
    WindowsIdentity identity = WindowsIdentity.GetCurrent();
    WindowsPrincipal principal = new WindowsPrincipal(identity);
    return principal.IsInRole(WindowsBuiltInRole.Administrator);
}

it returned me as the current user is only a administrator.

any sugessions for my above problem !

Answer 1

Since runas was useless, try embedding an application manifest

<requestedExecutionLevel level="requireAdministrator" uiAccess="false" /> 

That should work, anyway you always have the handy:

myprocess.StartInfo.UserName = "Administrator"; 
myprocess.StartInfo.Password = "password";