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<concept id="GUID-F3BD37EC-0CCB-5859-908F-215E22C9FC20" xml:lang="en"><title>File Server
Extensions</title><shortdesc>The File Server component manages all files on a Symbian platform
phone. This section describes how to extend the File Server for your phone
hardware. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

<p id="GUID-143780ED-4A23-5E72-A923-F605172EC8B5"> The different storage media
on a phone can use different types of file system to organize files. Symbian
platform provides a number of types of file system. You can implement a new
file system in a type of DLL called a file system plug-in. You can also implement
DLLs called a file server extensions to change the behavior of
a file system. You can implement a DLL called a file server plug-in to extend
the behavior of the File Server itself. </p>
<p>The File Server is started by the Base Starter component. The configuration
of the File Server, such as which file systems are loaded to which drives,
is done in the Base Starter configuration file. </p>
</conbody><related-links>
<link href="GUID-80698E62-E310-59CA-A524-5CF44C437BE4.dita"><linktext>Base   Starter</linktext>
</link>
<link href="GUID-320ADCFB-8449-541D-99A5-68F29A815559.dita"><linktext>File Server</linktext>
</link>
<link href="GUID-198DCED1-F429-5C95-A51D-53AE416687E8.dita"><linktext>File Server
Client Side</linktext></link>
<link href="GUID-20E09BC9-35CA-594A-BA91-D8D0C928FD98.dita"><linktext>File Systems</linktext>
</link>
<link href="GUID-868866C8-E90C-5291-8732-BB4E86D6B43E.dita"><linktext>Local Media
Subsystem</linktext></link>
<link href="GUID-9540A82E-F83D-55F5-B441-868CF77468E9.dita#GUID-9540A82E-F83D-55F5-B441-868CF77468E9/GUID-CFED15B1-E768-534E-9043-7AADE45EE9AF">
<linktext>Media Drivers</linktext></link>
</related-links></concept>