1 files changed, 41 insertions, 0 deletions

diff --git a/src/wix/WixToolset.Core.WindowsInstaller/WindowsInstallerExtensionCommandLine.cs b/src/wix/WixToolset.Core.WindowsInstaller/WindowsInstallerExtensionCommandLine.cs
new file mode 100644
index 00000000..4c516d0d
--- /dev/null
+++ b/src/wix/WixToolset.Core.WindowsInstaller/WindowsInstallerExtensionCommandLine.cs
@@ -0,0 +1,41 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolset.Core.WindowsInstaller
+{
+    using System;
+    using System.Collections.Generic;
+    using WixToolset.Extensibility;
+    using WixToolset.Extensibility.Data;
+    using WixToolset.Extensibility.Services;
+
+    /// <summary>
+    /// Parses the "msi" command-line command. See <c>WindowsInstallerCommand</c>
+    /// for the bulk of the command-line processing.
+    /// </summary>
+    internal class WindowsInstallerExtensionCommandLine : BaseExtensionCommandLine
+    {
+        public WindowsInstallerExtensionCommandLine(IServiceProvider serviceProvider)
+        {
+            this.ServiceProvider = serviceProvider;
+        }
+
+        private IServiceProvider ServiceProvider { get; }
+
+        public override IReadOnlyCollection<ExtensionCommandLineSwitch> CommandLineSwitches => new ExtensionCommandLineSwitch[]
+        {
+            new ExtensionCommandLineSwitch { Switch = "msi", Description = "Windows Installer specialized operations." },
+        };
+
+        public override bool TryParseCommand(ICommandLineParser parser, string argument, out ICommandLineCommand command)
+        {
+            command = null;
+
+            if ("msi".Equals(argument, StringComparison.OrdinalIgnoreCase))
+            {
+                command = new WindowsInstallerCommand(this.ServiceProvider);
+            }
+
+            return command != null;
+        }
+    }
+}