<div class="content"><p> </p><p>The <b>FAX_UnregisterServiceProviderEx (Opnum 61)</b> method
is called when the client needs to unregister a <span><a href="46aba9c4-ebb1-4b10-86ac-4bb3025657b9#gt_2ba66d72-d766-440f-b5ea-0333759b147c" data-linktype="relative-path">fax service provider (FSP)</a></span>.
In response, the server MUST validate that the client&#39;s fax user account has
write access. On success, the server MUST remove the service provider for the
fax server.<a id="Appendix_A_Target_179"></a><a aria-label="Product behavior note 179" href="056171e7-80bc-45ff-8107-66ba3abb2023#Appendix_A_179" data-linktype="relative-path">&lt;179&gt;</a></p><dl>
<dd>
<div><pre> error_status_t FAX_UnregisterServiceProviderEx(
   [in] handle_t hFaxHandle,
   [in, string, ref] LPCWSTR lpcwstrGUID
 );
</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 3.1.4.1.10) 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>lpcwstrGUID: </b>A pointer to a constant
null-terminated character string that contains a valid string representation of
the <span><a href="46aba9c4-ebb1-4b10-86ac-4bb3025657b9#gt_f49694cc-c350-462d-ab8e-816f0103c6c1" data-linktype="relative-path">GUID</a></span>
of the fax service provider (FSP). This value can be obtained with the <b>FAX_EnumerateProviders</b> (section
<span><a href="70c68964-884f-4edb-a50b-fe1c0aefa04e" data-linktype="relative-path">3.1.4.1.19</a></span>)
method.</p><p><b>Return Values: </b>This method MUST return
0x00000000 (ERROR_SUCCESS) for success; otherwise, it MUST return one of the
following error codes, 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 caller does not have the
  required FAX_ACCESS_MANAGE_CONFIG authorization for this operation.</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>