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diff --git a/libs/archive/src/propertyvariant.h b/libs/archive/src/propertyvariant.h
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+/*
+Mod Organizer archive handling
+
+Copyright (C) 2012 Sebastian Herbord, 2020 MO2 Team. All rights reserved.
+
+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 3 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 Street, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef PROPERTYVARIANT_H
+#define PROPERTYVARIANT_H
+
+#ifdef _WIN32
+#include <PropIdl.h>
+#else
+#include <Common/MyWindows.h>
+#endif
+
+/** This class implements a wrapper round the PROPVARIANT structure which
+ * makes it a little friendler to use and a little more C++ish
+ *
+ * Sadly the inheritance needs to be public. Once you have a pointer to the
+ * base class you can do pretty much anything to it anyway.
+ */
+class PropertyVariant : public tagPROPVARIANT
+{
+public:
+  PropertyVariant();
+  ~PropertyVariant();
+
+  // clears the property should you wish to overwrite it with another one.
+  void clear();
+
+  bool is_empty() { return vt == VT_EMPTY; }
+
+  // It's too much like hard work listing all the valid ones. If it doesn't
+  // link, then you need to implement it...
+  template <typename T>
+  explicit operator T() const;
+
+  template <typename T>
+  PropertyVariant& operator=(T const&);
+};
+
+#endif  // PROPVARIANT_H