diff --git a/build/WinStd-10.0.vcxproj.filters b/build/WinStd-10.0.vcxproj.filters
index 8e79e359..cbf838d0 100644
--- a/build/WinStd-10.0.vcxproj.filters
+++ b/build/WinStd-10.0.vcxproj.filters
@@ -32,6 +32,9 @@
     <ClCompile Include="..\src\Win.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\src\WinTrust.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="..\src\Sec.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
@@ -46,6 +49,9 @@
     <ClInclude Include="..\include\WinStd\Win.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\include\WinStd\WinTrust.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
     <ClInclude Include="..\include\WinStd\MSI.h">
       <Filter>Header Files</Filter>
     </ClInclude>
diff --git a/build/WinStd-15.0.vcxproj.filters b/build/WinStd-15.0.vcxproj.filters
index 8e79e359..cbf838d0 100644
--- a/build/WinStd-15.0.vcxproj.filters
+++ b/build/WinStd-15.0.vcxproj.filters
@@ -32,6 +32,9 @@
     <ClCompile Include="..\src\Win.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\src\WinTrust.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="..\src\Sec.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
@@ -46,6 +49,9 @@
     <ClInclude Include="..\include\WinStd\Win.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\include\WinStd\WinTrust.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
     <ClInclude Include="..\include\WinStd\MSI.h">
       <Filter>Header Files</Filter>
     </ClInclude>
diff --git a/build/WinStd.props b/build/WinStd.props
index d65987cd..65fbe029 100644
--- a/build/WinStd.props
+++ b/build/WinStd.props
@@ -31,6 +31,7 @@
       <PrecompiledHeader>Create</PrecompiledHeader>
     </ClCompile>
     <ClCompile Include="..\src\Win.cpp" />
+    <ClCompile Include="..\src\WinTrust.cpp" />
     <ClCompile Include="..\src\WLAN.cpp" />
   </ItemGroup>
   <ItemGroup>
@@ -46,6 +47,7 @@
     <ClInclude Include="..\include\WinStd\Sec.h" />
     <ClInclude Include="..\include\WinStd\Shell.h" />
     <ClInclude Include="..\include\WinStd\Win.h" />
+    <ClInclude Include="..\include\WinStd\WinTrust.h" />
     <ClInclude Include="..\include\WinStd\WLAN.h" />
     <ClInclude Include="..\src\StdAfx.h" />
   </ItemGroup>
diff --git a/include/WinStd/WinTrust.h b/include/WinStd/WinTrust.h
new file mode 100644
index 00000000..9f8a6b06
--- /dev/null
+++ b/include/WinStd/WinTrust.h
@@ -0,0 +1,76 @@
+/*
+    Copyright 1991-2018 Amebis
+    Copyright 2016 GÉANT
+
+    This file is part of WinStd.
+
+    Setup is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Setup 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Setup. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+///
+/// \defgroup WinTrustAPI WinTrust API
+/// Integrates WinStd classes with Microsoft WinTrust API
+///
+
+#include "Common.h"
+
+namespace winstd
+{
+    class WINSTD_API wintrust;
+}
+
+#pragma once
+
+#include <WinTrust.h>
+
+
+namespace winstd
+{
+    /// \addtogroup WinTrustAPI
+    /// @{
+
+    ///
+    /// WinTrust engine wrapper class
+    ///
+    class WINSTD_API wintrust
+    {
+    public:
+        ///
+        /// Initializes a new class instance.
+        ///
+        inline wintrust(_In_opt_ HWND hwnd, _In_ const GUID &action, _Inout_ WINTRUST_DATA &wtd) :
+            m_hwnd(hwnd),
+            m_action(action),
+            m_wtd(wtd)
+        {
+            LONG lResult = WinVerifyTrust(m_hwnd, &m_action, &m_wtd);
+            if (lResult != ERROR_SUCCESS)
+                throw win_runtime_error(lResult, "WinVerifyTrust failed.");
+        }
+
+        ///
+        /// Destroys the WinTrust context.
+        ///
+        virtual ~wintrust();
+
+    protected:
+        HWND          m_hwnd;
+        GUID          m_action;
+        WINTRUST_DATA &m_wtd;
+    };
+
+    /// @}
+}
diff --git a/src/WinTrust.cpp b/src/WinTrust.cpp
new file mode 100644
index 00000000..ca74c56b
--- /dev/null
+++ b/src/WinTrust.cpp
@@ -0,0 +1,34 @@
+/*
+    Copyright 1991-2018 Amebis
+    Copyright 2016 GÉANT
+
+    This file is part of WinStd.
+
+    Setup is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Setup 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Setup. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "StdAfx.h"
+
+#pragma comment(lib, "Wintrust.lib")
+
+
+//////////////////////////////////////////////////////////////////////
+// winstd::wintrust
+//////////////////////////////////////////////////////////////////////
+
+winstd::wintrust::~wintrust()
+{
+    m_wtd.dwStateAction = WTD_STATEACTION_CLOSE;
+    WinVerifyTrust(m_hwnd, (GUID*)&m_action, &m_wtd);
+}