The requested operation requires elevation

Question

I am trying to run an exe file from another user account name, it shows following error

    System.ComponentModel.Win32Exception: The requested operation requires an elevation
at System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo) at System.Diagnostics.Process.Start()
    at System.Diagnostics.Process.Start(ProcessStartInfo startInfo)

Here is my code

ProcessStartInfo pro = new ProcessStartInfo(application);
pro.UseShellExecute = false;
pro.Verb = "runas";
pro.WorkingDirectory = workingdirectory;
pro.RedirectStandardInput = true;
pro.RedirectStandardOutput = true;
pro.CreateNoWindow = true;

Process process = Process.Start(pro);

How to resolve this?

My very initial question is whether you've tried running it (your app) as an administrator? — Matthew Haugen, Sep 01 '14 at 07:08
I remember reading somewhere that `runas` requires `UseShellExecute = true`. Does it work if you set `UseShellExecute` to `true`? — Heinzi, Sep 01 '14 at 07:12
when i assign it to true, it shows "UseShellExecute must be false in order to start the process as a user — user3797438, Sep 01 '14 at 07:17

score 19 · Answer 1 · edited May 23 '17 at 12:17

19

Unfortunately, you cannot do

run with elevated permissions and
redirect input/output

simultaneously.

Reason:

Verb is only recognized when UseShellExecute = true, but
redirecting IO requires UseShellExecute = false.

More information:

Elevating privileges doesn't work with UseShellExecute=false

I guess in your situation you will have to skip using runas, but rather ensure that your application is already started with the correct user account/permissions. This should work, since processes started by elevated processes "inherit" elevation.

edited May 23 '17 at 12:17

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answered Sep 01 '14 at 07:20

Heinzi

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I have to run with elevated permissions only ....i dont want to redirect input/output...can u suggest me the code..@Heinzi – user3797438 Sep 01 '14 at 07:25
There's a way to write in the manifest that an application should always run as an admin, right? I don't remember how because it's been a while, but that'd probably be a good thing to do for this. I'm sure there are places documenting it. – Matthew Haugen Sep 01 '14 at 07:26
@user3797438: If you don't want to redirect input/output, why do you set `RedirectStandardInput` to `true`? Surely, every line in your code has a good reason for being there, right? – Heinzi Sep 01 '14 at 07:45

The requested operation requires elevation

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