1 files changed, 32 insertions, 0 deletions

diff --git a/src/WixToolset.Core.Native/Msm/IMsmConfigureModule.cs b/src/WixToolset.Core.Native/Msm/IMsmConfigureModule.cs
new file mode 100644
index 00000000..468fb1fc
--- /dev/null
+++ b/src/WixToolset.Core.Native/Msm/IMsmConfigureModule.cs
@@ -0,0 +1,32 @@
+// 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.Native.Msm
+{
+    using System;
+    using System.Runtime.InteropServices;
+
+    /// <summary>
+    /// Callback for configurable merge modules.
+    /// </summary>
+    [ComImport, Guid("AC013209-18A7-4851-8A21-2353443D70A0"), InterfaceType(ComInterfaceType.InterfaceIsIDispatch)]
+    public interface IMsmConfigureModule
+    {
+        /// <summary>
+        /// Callback to retrieve text data for configurable merge modules.
+        /// </summary>
+        /// <param name="name">Name of the data to be retrieved.</param>
+        /// <param name="configData">The data corresponding to the name.</param>
+        /// <returns>The error code (HRESULT).</returns>
+        [PreserveSig]
+        int ProvideTextData([In, MarshalAs(UnmanagedType.BStr)] string name, [MarshalAs(UnmanagedType.BStr)] out string configData);
+
+        /// <summary>
+        /// Callback to retrieve integer data for configurable merge modules.
+        /// </summary>
+        /// <param name="name">Name of the data to be retrieved.</param>
+        /// <param name="configData">The data corresponding to the name.</param>
+        /// <returns>The error code (HRESULT).</returns>
+        [PreserveSig]
+        int ProvideIntegerData([In, MarshalAs(UnmanagedType.BStr)] string name, out int configData);
+    }
+}