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+PassThrough File System Minifilter Driver
+=========================================
+
+The PassThrough minifilter demonstrates how to specify callback functions for different types of I/O requests.
+
+## Universal Compliant
+This sample builds a Windows Universal driver. It uses only APIs and DDIs that are included in Windows Core.
+
+Design and Operation
+--------------------
+
+The *PassThrough* minifilter does not have any real functionality. For each type of I/O operation, the same pre and post callback functions are called. These callback functions simply forward the I/O request to the next filter on the stack.
+
+For more information on file system minifilter design, start with the [File System Minifilter Drivers](http://msdn.microsoft.com/en-us/library/windows/hardware/ff540402) section in the Installable File Systems Design Guide.
+