<div class="content"><p> </p><p>The <b>FAX_UnregisterRoutingExtension (Opnum 62)</b> method
unregisters an existing inbound <span><a href="46aba9c4-ebb1-4b10-86ac-4bb3025657b9#gt_efaa1290-6d4b-4f44-9e84-35a867069d45" data-linktype="relative-path">routing</a></span> extension.<a id="Appendix_A_Target_178"></a><a aria-label="Product behavior note 178" href="056171e7-80bc-45ff-8107-66ba3abb2023#Appendix_A_178" data-linktype="relative-path">&lt;178&gt;</a></p><p>There are no corresponding routing extension registration
functions exposed to the FAX client. Registration is a non-RPC process that is
done locally on the fax server using any implementation-specific method.</p><p>On success, the server MUST unregister the specified routing
extension.</p><dl>
<dd>
<div><pre> error_status_t FAX_UnregisterRoutingExtension(
   [in] handle_t hFaxHandle,
   [in, string, ref] LPCWSTR lpcwstrExtensionName
 );
</pre></div>
</dd></dl><p><b>hFaxHandle: </b>The RPC binding handle for this
call. The client SHOULD reuse the RPC binding handle used as an input <i>hBinding</i>
argument for the <b>FAX_ConnectFaxServer</b> (section <span><a href="5cbfd38d-7a14-4560-ad24-9ed78f19a3bb" data-linktype="relative-path">3.1.4.1.10</a></span>)
or <b>FAX_ConnectionRefCount</b> (section <span><a href="a92941ac-bd07-4a71-af85-c2c157c97cf9" data-linktype="relative-path">3.1.4.1.11</a></span>) method
call used to connect to the fax server.</p><p><b>lpcwstrExtensionName: </b>Specifies the name of
the <span><a href="46aba9c4-ebb1-4b10-86ac-4bb3025657b9#gt_170298f8-e4d3-4ece-92a1-2e28c974734f" data-linktype="relative-path">fax
routing extension</a></span> returned by the <b>FAX_EnumRoutingExtensions</b> (section
<span><a href="10213abf-224c-435d-a77c-8cd5b80a9479" data-linktype="relative-path">3.1.4.1.30</a></span>)
call as the <b>lpcwstrExtensionName</b> field of the <b>FAX_ROUTING_EXTENSION_INFO</b> (section
<span><a href="f9f82598-144c-473f-adc2-ed92e748d3a4" data-linktype="relative-path">2.2.49</a></span>)
structure representing the respective fax routing extension.</p><p><b>Return Values: </b>This method MUST return
0x00000000 (ERROR_SUCCESS) for success; otherwise, it MUST return the following
error code, one of the fax-specific errors that are defined in section <span><a href="cbe6c4fb-4dda-4f6c-9701-0d490ba0d105" data-linktype="relative-path">2.2.52</a></span>,
or one of the other standard errors defined in <span><a href="../ms-erref/1bc92ddf-b79e-413c-bbaa-99a5281a6c90" data-linktype="relative-path">[MS-ERREF]</a></span>
section <span><a href="../ms-erref/18d8fbe8-a967-4f1c-ae50-99ca8e491d2d" data-linktype="relative-path">2.2</a></span>.</p><dl>
<dd>
<table><thead>
  <tr>
   <th>
   <p>Return value/code</p>
   </th>
   <th>
   <p>Description</p>
   </th>
  </tr>
 </thead><tbody><tr>
  <td>
  <p>ERROR_ACCESS_DENIED</p>
  <p>0x00000005</p>
  </td>
  <td>
  <p>Access is denied. The client&#39;s fax user account does
  not have sufficient rights to perform the operation (FAX_ACCESS_MANAGE_CONFIG)
  or the user account does not exist.</p>
  </td>
 </tr></tbody></table>
</dd></dl><p><b>Exceptions Thrown:</b> No exceptions are thrown
except those that are thrown by the underlying <span><a href="46aba9c4-ebb1-4b10-86ac-4bb3025657b9#gt_8a7f6700-8311-45bc-af10-82e10accd331" data-linktype="relative-path">RPC</a></span> protocol, <span><a href="../ms-rpce/290c38b1-92fe-4229-91e6-4fc376610c15" data-linktype="relative-path">[MS-RPCE]</a></span>.</p></div>