Am I running as an Administrator?

RunningAsAdministrator.cs

using System.Security.Principal;

// Is this thread running with Administrator role?
private static bool RunningAsAdministrator()
{
   var identity = WindowsIdentity.GetCurrent();
   if (identity == null) return false; // Administrator should always have access to this
   var principal = new WindowsPrincipal(identity);
   return principal.IsInRole(WindowsBuiltInRole.Administrator);
}

See also http://powershell.com/cs/blogs/tips/archive/2013/09/24/testing-administrator-privileges.aspx

Same Admin Account shows...
Running as Admin: Mandatory Label\High Mandatory Level Label S-1-16-12288
Running as Civilian: Mandatory Label\Medium Mandatory Level Label S-1-16-8192

Another admin-like power is registry access. This thread has a few interesting tidbits: http://stackoverflow.com/questions/1188723/how-do-i-check-whether-a-user-is-allowed-to-read-write-a-particular-registry-k