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diff --git a/cpp/src/qpid/store/ms-sql/BlobEncoder.h b/cpp/src/qpid/store/ms-sql/BlobEncoder.h
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+++ b/cpp/src/qpid/store/ms-sql/BlobEncoder.h
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+#ifndef QPID_STORE_MSSQL_BLOBENCODER_H
+#define QPID_STORE_MSSQL_BLOBENCODER_H
+
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+#include <comutil.h>
+#include <string>
+#include <boost/intrusive_ptr.hpp>
+#include <qpid/broker/Persistable.h>
+#include <qpid/broker/PersistableMessage.h>
+#include <qpid/framing/Buffer.h>
+#include <qpid/framing/FieldTable.h>
+
+namespace qpid {
+namespace store {
+namespace ms_sql {
+
+/**
+ * @class BlobEncoder
+ *
+ * Encodes a blob (varbinary) field from a qpid::broker::Persistable or a
+ * qpid::framing::FieldTable (both of which can be encoded to
+ * qpid::framing::Buffer) so it can be passed to ADO methods for writing
+ * to the database.
+ */
+class BlobEncoder : public _variant_t {
+private:
+    SAFEARRAY *blob;
+
+    template <class ITEM> void encode(const ITEM &item);
+
+public:
+    BlobEncoder(const qpid::broker::Persistable &item);
+    BlobEncoder(const boost::intrusive_ptr<qpid::broker::PersistableMessage> &msg);
+    BlobEncoder(const qpid::framing::FieldTable &fields);
+    BlobEncoder(const std::string& data);
+    ~BlobEncoder();
+};
+
+}}}  // namespace qpid::store::ms_sql
+
+#endif /* QPID_STORE_MSSQL_BLOBENCODER_H */