<div class="content" name="DeleteInstance" uuid="dc4aee01-7b9f-4c1a-8671-658fa334b8a4"><p>The IWbemServices::DeleteInstance method deletes an instance
of an existing class from the namespace that is pointed to by the <a href="7a50647a-5311-41c2-8f4f-83bcfb497877" data-linktype="relative-path">IWbemServices</a> interface
object that is used to call the method.</p><dl>
<dd>
<div><pre> HRESULT DeleteInstance(
   [in] const BSTR strObjectPath,
   [in] long lFlags,
   [in] IWbemContext* pCtx,
   [out, in, unique] IWbemCallResult** ppCallResult
 );
</pre></div>
</dd></dl><p><b>strObjectPath: </b>MUST be the <a href="6837a7cb-ba2d-46b1-802c-fce2fd5a6ad6#gt_775e4b82-5447-4125-b887-b404421e1269" data-linktype="relative-path">CIM path</a> to the class
instance that the client wants to delete. This parameter MUST NOT be NULL. The
CIM path MUST contain the class name and the value of the key properties.</p><p><b>lFlags: </b>Flags that affect the behavior of the
IWbemServices::DeleteInstance method. Flag behavior MUST be interpreted as
specified in the following table.</p><dl>
<dd>
<table><thead>
  <tr>
   <th>
   <p>Value</p>
   </th>
   <th>
   <p>Meaning</p>
   </th>
  </tr>
 </thead><tbody><tr>
  <td>WBEM_FLAG_RETURN_IMMEDIATELY 0x00000010</td>
  <td>If this bit is not set, the server MUST make the method call synchronously. If this bit is set, the server MUST make the method call semisynchronously.</td>
 </tr></tbody></table>
</dd></dl><p>Any other DWORD value that does not match the preceding
condition MUST be treated as invalid.</p><p><b>pCtx: </b>MUST be a pointer to an <a href="18c8f1a1-652f-43b7-9186-6098bc303a8d" data-linktype="relative-path">IWbemContext</a> interface,
which MUST contain additional information that the client wants to pass to the
server. If <i>pCtx</i> is NULL, the parameter MUST be ignored.</p><p><b>ppCallResult: </b>If the input parameter is
non-NULL, the server MUST return WBEM_S_NO_ERROR and <a href="23ec4065-3fbe-4e39-baef-69e22c285623" data-linktype="relative-path">IWbemCallResult</a> MUST
deliver the result of the requested operation (regardless whether
WBEM_FLAG_RETURN_IMMEDIATELY is set). The output parameter MUST be filled
according to the state of the <i>lFlags</i> parameter (whether
WBEM_FLAG_RETURN_IMMEDIATELY is set) as listed in the following table.</p><dl>
<dd>
<table><thead>
  <tr>
   <th>
   <p>Flag state</p>
   </th>
   <th>
   <p>Operation Started Successfully</p>
   </th>
   <th>
   <p>Operation Failed to Start</p>
   </th>
  </tr>
 </thead><tbody><tr>
  <td>WBEM_FLAG_RETURN_IMMEDIATELY is not set.</td>
  <td>MUST be set to IWbemCallResult if the input parameter is non-NULL.</td>
  <td>MUST be set to NULL if the input parameter is non-NULL.</td>
 </tr><tr>
  <td>WBEM_FLAG_RETURN_IMMEDIATELY is set.</td>
  <td>This parameter MUST NOT be NULL upon input. If NULL, the server MUST return WBEM_E_INVALID_PARAMETER. On output, the parameter MUST contain the IWbemCallResult interface pointer.</td>
  <td>MUST be set to NULL if the input parameter is non-NULL.</td>
 </tr></tbody></table>
</dd>
<dd>
<p>If the <i>ppCallResult</i> input
parameter is NULL and WBEM_FLAG_RETURN_IMMEDIATELY is not set, the server MUST
deliver the result of the requested operation synchronously.</p>
</dd></dl><p><b>Return Values: </b>This method MUST return an
HRESULT value that MUST indicate the status of the method call. The server MUST
return WBEM_S_NO_ERROR (specified in section <a href="a2899649-a5a3-4b13-9ffa-d8394dcdac63" data-linktype="relative-path">2.2.11</a>) to indicate the
successful completion of the method.</p><dl>
<dd>
<p><b>WBEM_S_NO_ERROR</b> (0x00)</p>
</dd></dl><p>The <a href="6837a7cb-ba2d-46b1-802c-fce2fd5a6ad6#gt_f3ef2572-95cf-4c5c-b3c9-551fd648f409" data-linktype="relative-path">security
principal</a> that makes the call MUST have WBEM_REMOTE_ENABLE and WBEM_ENABLE
accesses to the namespace; otherwise,  WBEM_E_ACCESS_DENIED MUST be returned.</p><p>If the CIM instance being updated is <a href="6837a7cb-ba2d-46b1-802c-fce2fd5a6ad6#gt_b11172af-9369-448d-9722-444eb52b21cb" data-linktype="relative-path">dynamic</a>, the security
principal that makes the call MUST have WBEM_WRITE_PROVIDER access to the
namespace; otherwise, WBEM_E_ACCESS_DENIED MUST be returned.</p><p>If the CIM instance being updated is static and if the CIM
instance is of a class that has a WMI system class as one of the classes in the
parent hierarchy, the security principal that makes the call MUST have
WBEM_FULL_WRITE access to the namespace; otherwise, WBEM_E_ACCESS_DENIED MUST
be returned.</p><p>If the CIM instance being updated is static and if the CIM
instance is of a class that does not have a WMI system class as one of the
classes in the parent hierarchy, the security principal that makes the call
MUST have WBEM_PARTIAL_WRITE_REP access to the namespace; otherwise,
WBEM_E_ACCESS_DENIED MUST be returned.</p><p>If the CIM instance being deleted is dynamic, the server
MUST obtain <b>SupportsDelete</b> for the given provider in the <b>ProviderTable</b>.
If <b>SupportsDelete</b> is FALSE, the server MUST return
WBEM_E_PROVIDER_NOT_CAPABLE.</p><p>In response to the IWbemServices::DeleteInstance method, the
server MUST evaluate the <i>strObjectPath</i> parameter (as specified in this
section) and MUST delete the instance that is identified by <i>strObjectPath</i>
from the current namespace. The method MUST fail if the following applies: if <i>strObjectPath</i>
does not exist; if the method parameters or their combinations are not valid as
specified in the preceding list; or if the server is unable to execute the
method.</p><p>The server SHOULD enforce a maximum length for the <i>strObjectPath</i>
parameter, and return WBEM_E_QUOTA_VIOLATION if the limit is exceeded.<a id="Appendix_A_Target_44"></a><a aria-label="Product behavior note 44" href="27182640-aa3f-43b6-941f-a77d25f798e8#Appendix_A_44" data-linktype="relative-path">&lt;44&gt;</a></p><p>The successful synchronous method execution MUST return
WBEM_S_NO_ERROR.</p><p>The semisynchronous method execution MUST follow the rules
as specified in section <a href="c40421d8-b195-4268-884f-a4e74ea58dce" data-linktype="relative-path">3.1.1.1.2</a>.</p><p>The failed method execution MUST set the output parameters
to NULL and MUST return an error in the format specified in section 2.2.11.</p></div>