<div class="content"><p>The Microsoft OCSP Administration Protocol consists of a set
of <span><a href="801063f5-7eda-4bfe-99ef-84c1ea3849a1#gt_ae2a9876-7fed-4f0d-a390-bf78f76c0736" data-linktype="relative-path">DCOM</a></span>
interfaces <span><a href="../ms-dcom/4a893f3d-bd29-48cd-9f43-d9777a4415b0" data-linktype="relative-path">[MS-DCOM]</a></span>
that allows administrative tools to configure the properties of a responder. </p><p>A responder is a server implementation of the <span><a href="801063f5-7eda-4bfe-99ef-84c1ea3849a1#gt_9076fc31-afc2-4c3d-9fd4-bf011837b362" data-linktype="relative-path">Online
Certificate Status Protocol (OCSP)</a></span>. A responder can be configured to
provide revocation information for <span><a href="801063f5-7eda-4bfe-99ef-84c1ea3849a1#gt_7a0f4b71-23ba-434f-b781-28053ed64879" data-linktype="relative-path">certificates</a></span> issued
by one or more <span><a href="801063f5-7eda-4bfe-99ef-84c1ea3849a1#gt_c925d5d7-a442-4ba4-9586-5f94ccec847a" data-linktype="relative-path">certificate authorities (CAs)</a></span>
by creating a <span><a href="801063f5-7eda-4bfe-99ef-84c1ea3849a1#gt_11c04cbf-4128-46bd-8b12-02b405424539" data-linktype="relative-path">revocation configuration</a></span>
for each CA key. A responder also has properties that apply generically across
all revocation configurations. These properties are sometimes referenced as
&#34;responder-wide&#34; properties or simply <span><a href="801063f5-7eda-4bfe-99ef-84c1ea3849a1#gt_3a8d9bce-0efe-456f-a351-a061ca997dd1" data-linktype="relative-path">responder properties</a></span>.</p><p>Using this protocol, administrative tools can perform such
functions as getting or setting responder properties, creating and removing
revocation configurations, and retrieving <span><a href="801063f5-7eda-4bfe-99ef-84c1ea3849a1#gt_6a2366ee-fc9c-4406-963d-eac335ed8fc5" data-linktype="relative-path">signing certificates</a></span>
from a responder.</p><p>The participants in this protocol are as follows:</p><ul><li><p><span><span> 
</span></span><span><a href="801063f5-7eda-4bfe-99ef-84c1ea3849a1#gt_688a239d-e58b-42df-b622-da727dca4227" data-linktype="relative-path">Online Responder</a></span>
computer.</p>
</li><li><p><span><span> 
</span></span>Administrator computer: A client computer that performs remote
configuration or administration tasks on the Online Responder computer.</p>
</li></ul><p>The protocol uses the IOCSPAdminD DCOM interface, which
offers the 10 methods documented in the following sections. These methods allow
the administrator to set and retrieve properties, set and retrieve security
information, and to test whether the service is responding.</p></div>