diff --git a/OpenRA.Launcher.Mac/Controller.m b/OpenRA.Launcher.Mac/Controller.m
index a46d7bda12..babe4260ac 100644
--- a/OpenRA.Launcher.Mac/Controller.m
+++ b/OpenRA.Launcher.Mac/Controller.m
@@ -58,14 +58,14 @@
 - (void)extractZip:(NSArray *)args
 {
 	// Todo: check if we can write to the requested dir, escalate priviledges if required.
-	NSArray *a = [NSArray arrayWithObjects:@"--extract-zip", [args objectAtIndex:2], [args objectAtIndex:3], nil];
+	NSArray *a = [NSArray arrayWithObjects:@"--extract-zip-inner", [args objectAtIndex:2], [args objectAtIndex:3], nil];
 	[self runUtilityWithArgs:a];
 }
 
 - (void)installRAPackages:(NSArray *)args
 {
 	// Todo: check if we can write to the requested dir, escalate priviledges if required.
-	NSArray *a = [NSArray arrayWithObjects:@"--install-ra-packages", [args objectAtIndex:2], nil];
+	NSArray *a = [NSArray arrayWithObjects:@"--install-ra-packages-inner", [args objectAtIndex:2], nil];
 	[self runUtilityWithArgs:a];
 }
 
diff --git a/OpenRA.Launcher.Mac/build/Release/OpenRA.app/Contents/MacOS/OpenRA b/OpenRA.Launcher.Mac/build/Release/OpenRA.app/Contents/MacOS/OpenRA
index a54d317931..ce9e955b59 100755
Binary files a/OpenRA.Launcher.Mac/build/Release/OpenRA.app/Contents/MacOS/OpenRA and b/OpenRA.Launcher.Mac/build/Release/OpenRA.app/Contents/MacOS/OpenRA differ
diff --git a/OpenRA.Utility/Command.cs b/OpenRA.Utility/Command.cs
index b128758620..af8488ec03 100644
--- a/OpenRA.Utility/Command.cs
+++ b/OpenRA.Utility/Command.cs
@@ -172,5 +172,20 @@ namespace OpenRA.Utility
 
 			Console.WriteLine(n.Value);
 		}
+		
+		public static void AuthenticateAndExtractZip(string[] args)
+		{			
+			Util.CallWithAdmin("--extract-zip \"{0}\" \"{1}\"".F(args[1], args[2]));
+		}
+		
+		public static void AuthenticateAndInstallRAPackages(string[] args)
+		{			
+			Util.CallWithAdmin("--install-ra-packages \"{0}\"".F(args[1]));
+		}
+		
+		public static void AuthenticateAndInstallCncPackages(string[] args)
+		{			
+			Util.CallWithAdmin("--install-cnc-packages \"{0}\"".F(args[1]));
+		}
 	}
 }
diff --git a/OpenRA.Utility/Program.cs b/OpenRA.Utility/Program.cs
index 42b0d19b41..da7e9fa4b4 100644
--- a/OpenRA.Utility/Program.cs
+++ b/OpenRA.Utility/Program.cs
@@ -27,11 +27,14 @@ namespace OpenRA.Utility
 		static void Main(string[] args)
 		{
 			argCallbacks = new Dictionary<string, ArgCallback>();
-			argCallbacks.Add("--extract-zip", Command.ExtractZip);
-			argCallbacks.Add("--install-ra-packages", Command.InstallRAPackages);
-			argCallbacks.Add("--install-cnc-packages", Command.InstallCncPackages);
+			argCallbacks.Add("--extract-zip-inner", Command.ExtractZip);
+			argCallbacks.Add("--install-ra-packages-inner", Command.InstallRAPackages);
+			argCallbacks.Add("--install-cnc-packages-inner", Command.InstallCncPackages);
 			argCallbacks.Add("--display-filepicker", Command.DisplayFilepicker);
 			argCallbacks.Add("--settings-value", Command.Settings);
+			argCallbacks.Add("--install-ra-packages", Command.AuthenticateAndInstallRAPackages);
+			argCallbacks.Add("--install-cnc-packages", Command.AuthenticateAndInstallCncPackages);
+			argCallbacks.Add("--extract-zip", Command.AuthenticateAndExtractZip);
 
 			if (args.Length == 0) { PrintUsage(); return; }
 
diff --git a/OpenRA.Utility/Util.cs b/OpenRA.Utility/Util.cs
index be35dd3231..d5885b035e 100644
--- a/OpenRA.Utility/Util.cs
+++ b/OpenRA.Utility/Util.cs
@@ -13,6 +13,9 @@ using System.IO;
 using ICSharpCode.SharpZipLib.Zip;
 using OpenRA.FileFormats;
 using System.Collections.Generic;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.IO.Pipes;
 
 namespace OpenRA.Utility
 {
@@ -61,5 +64,39 @@ namespace OpenRA.Utility
 			}
 			z.Close();
 		}
+		
+		public static string GetPipeName()
+		{
+			return "OpenRA.Utility" + Guid.NewGuid().ToString();
+		}	
+		
+		public static void CallWithAdmin(string command)
+		{			
+			string pipename = Util.GetPipeName();
+			var p = new Process();
+			p.StartInfo.FileName = "OpenRA.Utility.exe";
+			p.StartInfo.Arguments = command + " --pipe=" + pipename;
+			p.StartInfo.Verb = "runas";
+
+			try
+			{
+				p.Start();
+			}
+			catch (Win32Exception e)
+			{
+				if (e.NativeErrorCode == 1223) //ERROR_CANCELLED
+					return;
+				throw e;
+			}
+			
+			var pipe = new NamedPipeClientStream(".", pipename, PipeDirection.In);
+			pipe.Connect();
+
+			using (var reader = new StreamReader(pipe))
+			{
+				while (!p.HasExited)
+					Console.Write(reader.ReadLine());
+			}
+		}
 	}
 }