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diff --git a/libs/usvfs/src/shared/shared_memory.h b/libs/usvfs/src/shared/shared_memory.h
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+++ b/libs/usvfs/src/shared/shared_memory.h
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+/*
+Userspace Virtual Filesystem
+
+Copyright (C) 2015 Sebastian Herbord. All rights reserved.
+
+This file is part of usvfs.
+
+usvfs 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.
+
+usvfs 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 usvfs. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+namespace bi = boost::interprocess;
+namespace bc = boost::container;
+
+namespace usvfs::shared
+{
+
+template <typename T>
+using OffsetPtrT = bi::offset_ptr<T, std::int32_t, std::uint64_t>;
+
+using VoidPointerT = OffsetPtrT<void>;
+
+// important: the windows shared memory mechanism, unlike other implementations,
+// automatically removes the SHM object when there are no more "subscribers".
+// MO currently depends on that feature!
+
+// managed_windows_shared_memory apparently doesn't support sharing between
+// 64bit and 32bit processes
+using managed_windows_shared_memory = bi::basic_managed_windows_shared_memory<
+    char, bi::rbtree_best_fit<bi::mutex_family, VoidPointerT, 8>, bi::iset_index>;
+
+using SharedMemoryT   = managed_windows_shared_memory;
+using SegmentManagerT = SharedMemoryT::segment_manager;
+
+using VoidAllocatorT = boost::container::scoped_allocator_adaptor<
+    boost::interprocess::allocator<void, SegmentManagerT>>;
+using CharAllocatorT = VoidAllocatorT::rebind<char>::other;
+
+using StringT = bc::basic_string<char, std::char_traits<char>, CharAllocatorT>;
+
+}  // namespace usvfs::shared