<div class="content"><p> </p><p>The DRS_MSG_GETCHGREQ_V3 structure defines a portion of the
request message that is sent to the <span><a href="b63730ac-614c-431c-9501-28d6aca91894" data-linktype="relative-path">IDL_DRSGetNCChanges</a></span>
method as part of SMTP <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_a5678f3c-cf60-4b89-b835-16d643d1debb" data-linktype="relative-path">replication</a></span> (<span><a href="../ms-srpl/ec69eea5-0d5e-428a-b5bc-66732aaeb866" data-linktype="relative-path">[MS-SRPL]</a></span>).
This is not a complete request message; it is embedded in <span><a href="9db4db21-8ccd-4c81-8662-6e2baff8426c" data-linktype="relative-path">DRS_MSG_GETCHGREQ_V4</a></span>
and <span><a href="5ef4f597-a397-4f6f-a98b-7a034247d886" data-linktype="relative-path">DRS_MSG_GETCHGREQ_V7</a></span>.<a id="Appendix_A_Target_26"></a><a aria-label="Product behavior note 26" href="e3b89556-4e48-467c-87b3-b4a737cc4999#Appendix_A_26" data-linktype="relative-path">&lt;26&gt;</a></p><dl>
<dd>
<div><pre> typedef struct {
   UUID uuidDsaObjDest;
   UUID uuidInvocIdSrc;
   [ref] DSNAME* pNC;
   USN_VECTOR usnvecFrom;
   [unique] UPTODATE_VECTOR_V1_EXT* pUpToDateVecDestV1;
   [unique] PARTIAL_ATTR_VECTOR_V1_EXT* pPartialAttrVecDestV1;
   SCHEMA_PREFIX_TABLE PrefixTableDest;
   ULONG ulFlags;
   ULONG cMaxObjects;
   ULONG cMaxBytes;
   ULONG ulExtendedOp;
 } DRS_MSG_GETCHGREQ_V3;
</pre></div>
</dd></dl><p><b>uuidDsaObjDest:</b>  <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_736b1076-d1cb-40b9-9247-d66cca6819d1" data-linktype="relative-path">DSA GUID</a></span>
of the client <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_76a05049-3531-4abd-aec8-30e19954b4bd" data-linktype="relative-path">DC</a></span>.</p><p><b>uuidInvocIdSrc:</b>  <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_e7869b9a-61fa-46e3-89dd-fb3f57d1ba7a" data-linktype="relative-path">Invocation
ID</a></span> of the server DC.</p><p><b>pNC:</b>  <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_784c7cce-f782-48d8-9444-c9030ba86942" data-linktype="relative-path">NC</a></span> root of the <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_ea02e669-2dda-460c-9992-b12a23caeeac" data-linktype="relative-path">replica</a></span>
to replicate or the <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_6ea17c3e-787a-40e3-a62f-0313dcdc16b7" data-linktype="relative-path">FSMO role object</a></span> for
an <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_8514d343-000a-45e2-918b-5f6100e2e7c6" data-linktype="relative-path">extended
operation</a></span>.</p><p><b>usnvecFrom:</b>  Data that is used to
correlate calls to IDL_DRSGetNCChanges.</p><p><b>pUpToDateVecDestV1:</b>  <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_ff635a35-a17d-477b-a30d-9723b415bf00" data-linktype="relative-path">Stamp</a></span>
filter describing <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_b242435b-73cc-4c4e-95f0-b2a2ff680493" data-linktype="relative-path">updates</a></span> that the
client has already applied.</p><p><b>pPartialAttrVecDestV1:</b>  A set of one
or more <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_108a1419-49a9-4d19-b6ca-7206aa726b3f" data-linktype="relative-path">attributes</a></span> whose
values are to be replicated to the client&#39;s partial replica.</p><p><b>PrefixTableDest:</b>  <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_028437b6-7749-4428-b874-22e9559c1abe" data-linktype="relative-path">Prefix
table</a></span> with which to convert the <span><a href="91173129-08e6-497c-8266-b5ac0aa5f983" data-linktype="relative-path">ATTRTYP</a></span> values in
pPartialAttrVecDestV1 to <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_aaaf2f1a-0b0a-487e-a0f0-c3510a6091b2" data-linktype="relative-path">OIDs</a></span>.</p><p><b>ulFlags:</b>  A <span><a href="ac9c8a11-cd46-4080-acbf-9faa86344030" data-linktype="relative-path">DRS_OPTIONS</a></span>
bit field.</p><p><b>cMaxObjects:</b>  An approximate cap on
the number of <span><a href="e5c2026b-f732-4c9d-9d60-b945c0ab54eb#gt_8bb43a65-7a8c-4585-a7ed-23044772f8ca" data-linktype="relative-path">objects</a></span> to include
in the reply.</p><p><b>cMaxBytes:</b>  An approximate cap on
the number of bytes to include in the reply.</p><p><b>ulExtendedOp:</b>  0 or an EXOP_REQ code
(section <span><a href="05de65ee-af0d-46d1-a9c8-4f0f856031cb" data-linktype="relative-path">4.1.10.2.22</a></span>).</p></div>