Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Application/Deltares.LayerOnSlopeTool.Application.csproj
===================================================================
diff -u -r3066 -r3070
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Application/Deltares.LayerOnSlopeTool.Application.csproj	(.../Deltares.LayerOnSlopeTool.Application.csproj)	(revision 3066)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Application/Deltares.LayerOnSlopeTool.Application.csproj	(.../Deltares.LayerOnSlopeTool.Application.csproj)	(revision 3070)
@@ -35,6 +35,9 @@
     <Prefer32Bit>true</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="CommandLine">
+      <HintPath>..\..\lib\CommandLineParser\CommandLine.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Xml.Linq" />
@@ -45,6 +48,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="CommandOptions.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Application/CommandOptions.cs
===================================================================
diff -u
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Application/CommandOptions.cs	(revision 0)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Application/CommandOptions.cs	(revision 3070)
@@ -0,0 +1,73 @@
+// Copyright (C) Stichting Deltares 2020. All rights reserved.
+//
+// This file is part of the Dam Engine.
+//
+// The Dam Engine is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System;
+using CommandLine;
+using CommandLine.Text;
+
+namespace Deltares.LayerOnSlopeTool.Application
+{
+    internal class CommandOptions : CommandLineOptionsBase
+    {
+        public const string DefaultInputFolder = "Input";
+        public const string DefaultOutputFolder = "Output";
+
+        [Option("i", "input", Required = true, DefaultValue = DefaultInputFolder, HelpText = "Name and path of the input folder.")]
+        public string InputFolderName { get; set; }
+
+        [Option("o", "output", Required = false, DefaultValue = DefaultOutputFolder, HelpText = "Name and path of the output folder.")]
+        public string OutputFolderName { get; set; }
+
+        [HelpOption]
+        public string GetUsage()
+        {
+            var help = new HelpText
+            {
+                Heading = "Layer on Slope Tool",
+                Copyright = "Copyright (c) 2020 Deltares",
+                AdditionalNewLineAfterOption = true,
+                AddDashesToOption = true
+            };
+
+            this.HandleParsingErrorsInHelp(help);
+
+            help.AddPreOptionsLine("Usage: LayerOnSlopeTool[.exe] -i InputFile [ -o OutputFile]");
+            help.AddOptions(this);
+
+            return help;
+        }
+
+        void HandleParsingErrorsInHelp(HelpText help)
+        {
+            if (this.LastPostParsingState.Errors.Count > 0)
+            {
+                var errors = help.RenderParsingErrorsText(this, 2); // indent with two spaces					
+                if (!string.IsNullOrEmpty(errors))
+                {
+                    help.AddPreOptionsLine(string.Concat(Environment.NewLine, "ERROR(S):"));
+                    help.AddPreOptionsLine(errors);
+                }
+            }
+        }
+
+    }
+
+}
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Application/Program.cs
===================================================================
diff -u -r3067 -r3070
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Application/Program.cs	(.../Program.cs)	(revision 3067)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Application/Program.cs	(.../Program.cs)	(revision 3070)
@@ -20,17 +20,35 @@
 // All rights reserved.
 
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using CommandLine;
 
 namespace Deltares.LayerOnSlopeTool.Application
 {
-    class Program
+    internal class Program
     {
         static void Main(string[] args)
         {
+            var commandLineArguments = new CommandOptions();
+            ICommandLineParser parser = new CommandLineParser();
+            bool success = parser.ParseArguments(args, commandLineArguments);
+            try
+            {
+                if (success)
+                {
+                    // TODO Add call to LayerCreator
+                }
+                else
+                {
+                    Console.WriteLine();
+                    Console.WriteLine(commandLineArguments.GetUsage());
+                    Environment.ExitCode = -1;
+                }
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine("Exception: {0}", e.Message);
+                Environment.ExitCode = -1;
+            }
         }
     }
 }