You must use ShellExecute
. ShellExecute is the only API that knows how to launch Consent.exe
in order to elevate.
Sample (.NET) Source Code
In C#, the way you call ShellExecute
is to use Process.Start
along with UseShellExecute = true
:
private void button1_Click(object sender, EventArgs e)
{
//Public domain; no attribution required.
ProcessStartInfo info = new ProcessStartInfo(@"C:\Windows\Notepad.exe");
info.UseShellExecute = true;
info.Verb = "runas";
Process.Start(info);
}
If you want to be a good developer, you can catch when the user clicked No:
private void button1_Click(object sender, EventArgs e)
{
//Public domain; no attribution required.
const int ERROR_CANCELLED = 1223; //The operation was canceled by the user.
ProcessStartInfo info = new ProcessStartInfo(@"C:\Windows\Notepad.exe");
info.UseShellExecute = true;
info.Verb = "runas";
try
{
Process.Start(info);
}
catch (Win32Exception ex)
{
if (ex.NativeErrorCode == ERROR_CANCELLED)
MessageBox.Show("Why you no select Yes?");
else
throw;
}
}
Bonus Watching
- UAC – What. How. Why.. The architecture of UAC, explaining that
CreateProcess
cannot do elevation, only create a process.ShellExecute
is the one who knows how to launch Consent.exe, and Consent.exe is the one who checks group policy options.