diff --git a/patches/combase-RoApi/0001-include-Add-activation.idl-with-IActivationFactory-i.patch b/patches/combase-RoApi/0001-include-Add-activation.idl-with-IActivationFactory-i.patch
new file mode 100644
index 00000000..cb20df2b
--- /dev/null
+++ b/patches/combase-RoApi/0001-include-Add-activation.idl-with-IActivationFactory-i.patch
@@ -0,0 +1,66 @@
+From b92b38bb3ad97ec7b8280c3b3bd694e48ff3e535 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Michael=20M=C3=BCller?= <michael@fds-team.de>
+Date: Sun, 17 Jan 2016 01:36:08 +0100
+Subject: include: Add activation.idl with IActivationFactory interface.
+
+---
+ include/Makefile.in    |  1 +
+ include/activation.idl | 35 +++++++++++++++++++++++++++++++++++
+ 2 files changed, 36 insertions(+)
+ create mode 100644 include/activation.idl
+
+diff --git a/include/Makefile.in b/include/Makefile.in
+index 129ff6d..14e934c 100644
+--- a/include/Makefile.in
++++ b/include/Makefile.in
+@@ -1,5 +1,6 @@
+ IDL_SRCS = \
+ 	access.idl \
++	activation.idl \
+ 	activaut.idl \
+ 	activdbg.idl \
+ 	activscp.idl \
+diff --git a/include/activation.idl b/include/activation.idl
+new file mode 100644
+index 0000000..92ec011
+--- /dev/null
++++ b/include/activation.idl
+@@ -0,0 +1,35 @@
++/*
++ * Copyright 2016 Michael Müller
++ *
++ * This library is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU Lesser General Public
++ * License as published by the Free Software Foundation; either
++ * version 2.1 of the License, or (at your option) any later version.
++ *
++ * This library 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
++ * Lesser General Public License for more details.
++ *
++ * You should have received a copy of the GNU Lesser General Public
++ * License along with this library; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
++ */
++
++#if 0
++#pragma makedep install
++#endif
++
++#ifndef DO_NO_IMPORTS
++import "inspectable.idl";
++#endif
++
++[
++    object,
++    uuid(00000035-0000-0000-c000-000000000046),
++    pointer_default(unique)
++]
++interface IActivationFactory : IInspectable
++{
++    HRESULT ActivateInstance([out] IInspectable **instance);
++}
+-- 
+2.6.4
+
diff --git a/patches/patchinstall.sh b/patches/patchinstall.sh
index 72810b22..84993a15 100755
--- a/patches/patchinstall.sh
+++ b/patches/patchinstall.sh
@@ -92,6 +92,7 @@ patch_enable_all ()
 	enable_api_ms_win_Stub_DLLs="$1"
 	enable_authz_Stub_Functions="$1"
 	enable_browseui_Progress_Dialog="$1"
+	enable_combase_RoApi="$1"
 	enable_combase_WindowsString="$1"
 	enable_comctl32_Button_Theming="$1"
 	enable_comctl32_PROPSHEET_InsertPage="$1"
@@ -406,6 +407,9 @@ patch_enable ()
 		category-stable)
 			enable_category_stable="$2"
 			;;
+		combase-RoApi)
+			enable_combase_RoApi="$2"
+			;;
 		combase-WindowsString)
 			enable_combase_WindowsString="$2"
 			;;
@@ -2575,6 +2579,18 @@ if test "$enable_browseui_Progress_Dialog" -eq 1; then
 	) >> "$patchlist"
 fi
 
+# Patchset combase-RoApi
+# |
+# | Modified files:
+# |   *	include/Makefile.in, include/activation.idl
+# |
+if test "$enable_combase_RoApi" -eq 1; then
+	patch_apply combase-RoApi/0001-include-Add-activation.idl-with-IActivationFactory-i.patch
+	(
+		echo '+    { "Michael Müller", "include: Add activation.idl with IActivationFactory interface.", 1 },';
+	) >> "$patchlist"
+fi
+
 # Patchset combase-WindowsString
 # |
 # | Modified files: