<div class="content"><p>The <b>InitializeAdapterConfiguration</b> method initializes
the server <b>Firewall State</b> to process subsequent calls of <a href="85544bf1-dae1-403f-a240-1b3935fe40e4" data-linktype="relative-path">GetNextAdapterFirewallConfiguration</a>.</p><p>This method is called at least once before
GetNextAdapterFirewallConfiguration.</p><dl>
<dd>
<div><pre> HRESULT InitializeAdapterConfiguration(
   [out] unsigned long* cRetAdapters
 );
</pre></div>
</dd></dl><p><b>cRetAdapters: </b>A pointer to an unsigned 32-bit
integer indicating the number of adapters in the network adapter index of the <b>Firewall
State</b>. Upon successful completion of this method, the server MUST set this
value. If the method fails, the client MUST ignore this value.</p><p><b>Return Values: </b>A signed 32-bit value that
indicates return status. If the method returns a negative value, it has failed.
Zero or positive values indicate success, with the lower 16 bits in positive
nonzero values containing warnings or flags defined in the method
implementation. For more information about Win32 error codes and <a href="../ms-dtyp/a9046ed2-bfb2-4d56-a719-2824afce59ac" data-linktype="relative-path">HRESULT</a>
values, see <a href="../ms-erref/1bc92ddf-b79e-413c-bbaa-99a5281a6c90" data-linktype="relative-path">[MS-ERREF]</a>
sections <a href="../ms-erref/18d8fbe8-a967-4f1c-ae50-99ca8e491d2d" data-linktype="relative-path">2.2</a>
and <a href="../ms-erref/0642cb2f-2075-4469-918c-4441e69c548a" data-linktype="relative-path">2.1</a>.</p><dl>
<dd>
<table><thead>
  <tr>
   <th>
   <p>Return value/code</p>
   </th>
   <th>
   <p>Description</p>
   </th>
  </tr>
 </thead><tbody><tr>
  <td>
  <p>0x00000000</p>
  <p>S_OK</p>
  </td>
  <td>
  <p>The call was successful.</p>
  </td>
 </tr></tbody></table>
</dd></dl><p>Exceptions Thrown: No exceptions are thrown beyond those
thrown by the underlying <a href="b30bcd1c-8ff6-46d2-a27e-61bd85ace9f4#gt_8a7f6700-8311-45bc-af10-82e10accd331" data-linktype="relative-path">RPC</a>
protocol <a href="../ms-rpce/290c38b1-92fe-4229-91e6-4fc376610c15" data-linktype="relative-path">[MS-RPCE]</a>.</p><p>The <a href="b30bcd1c-8ff6-46d2-a27e-61bd85ace9f4#gt_e127848e-c66d-427d-b3aa-9f904fa4ada7" data-linktype="relative-path">opnum</a>
field value for this method is 3.</p><p>When processing this call, the server MUST initialize the <b>Firewall
State</b>. The server MUST retain the <b>Firewall State</b> until either the
protocol session terminates or this method is called again (in which case the
server MUST reinitialize the <b>Firewall State</b>).</p><p>The server returns the following information to the client:</p><ul><li><p><span><span> 
</span></span>The output parameters set to the values specified previously.</p>
</li></ul></div>