How to run another app as administrator on Windows

Question

I used the application manifest file as described here to have a part of my application running with elevated privileges (which it needs).
So when needed, the main program just invokes a small assembly using Process.Start which then handles the task for which admin rights are required.

However, how can I do the same thing on Windows XP?
It seems XP just ignores this manifest and runs the small assembly in the current user context.

Answer 1

Windows XP does not have UAC.

You need to call Process.Start with the login credentials of a user with administrative priviliges.

Answer 2

The following code from here does just what I need:

ProcessStartInfo processStartInfo = new ProcessStartInfo("path", "args");
processStartInfo.Verb = "runas";

using (Process process = new Process())
{
   process.StartInfo = processStartInfo;
   process.Start();
   process.WaitForExit();
}

So in fact you need to set "runas" on ProcessStartInfo.Verb. With the attached manifest this code now works fine on Windows XP, Vista and 7.

Update:
See also this answer to a similar question. This is basically the same code, just using arguments as well.

Answer 3

You can use the runas command.