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diff --git a/backends/factories/abstract-fs-factory.h b/backends/factories/abstract-fs-factory.h
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+++ b/backends/factories/abstract-fs-factory.h
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+#ifndef ABSTRACT_FILESYSTEM_FACTORY_H
+#define ABSTRACT_FILESYSTEM_FACTORY_H
+
+#include "common/str.h"
+#include "backends/fs/abstract-fs.h"
+#include "backends/file/base-file.h"
+
+/**
+ * Creates concrete FilesystemNode objects depending on the current architecture.
+ */
+class AbstractFilesystemFactory {
+public:
+	typedef Common::String String;
+	
+	/**
+	 * Destructor.
+	 */
+	virtual ~AbstractFilesystemFactory() {}
+	
+	/**
+	 * Returns a node representing the "current directory".
+	 * If your system does not support this concept, you can either try to
+	 * emulate it or simply return some "sensible" default directory node,
+	 * e.g. the same value as getRoot() returns.
+	 */
+	virtual AbstractFilesystemNode *makeCurrentDirectoryFileNode() const = 0;
+	
+	/**
+	 * Construct a node based on a path; the path is in the same format as it
+	 * would be for calls to fopen().
+	 *
+	 * Furthermore getNodeForPath(oldNode.path()) should create a new node
+	 * identical to oldNode. Hence, we can use the "path" value for persistent
+	 * storage e.g. in the config file.
+	 *
+	 * @param path The path string to create a FilesystemNode for.
+	 */
+	virtual AbstractFilesystemNode *makeFileNodePath(const String &path) const = 0;
+	
+	/**
+	 * Returns a special node representing the filesystem root.
+	 * The starting point for any file system browsing.
+	 * 
+	 * On Unix, this will be simply the node for / (the root directory).
+	 * On Windows, it will be a special node which "contains" all drives (C:, D:, E:).
+	 */
+	virtual AbstractFilesystemNode *makeRootFileNode() const = 0;
+	
+	/**
+	 * Creates a base file usable by the Common::File wrapper to implement several
+	 * methods.
+	 */
+	virtual BaseFile *makeBaseFile() const = 0;
+};
+
+#endif /*ABSTRACT_FILESYSTEM_FACTORY_H*/