<div class="content"><p>The IUpdate::UninstallationBehavior (opnum 45) method
retrieves a description of the uninstallation behavior for the update.</p><dl>
<dd>
<div><pre> HRESULT UninstallationBehavior(
   [out, retval] IInstallationBehavior** retval
 );
</pre></div>
</dd></dl><p><b>retval: </b>An <b>IInstallationBehavior</b> instance
describing the behavior of the uninstallation operation for this update. If the
update cannot be uninstalled, <i>retval</i> MUST be set to NULL.</p><p><b>Return Values: </b>The method MUST return
information in an <b>HRESULT</b> data structure. The severity bit in the
structure identifies the following conditions:</p><ul><li><p><span><span>  </span></span>If
the severity bit is set to 0, the method completed successfully.</p>
</li><li><p><span><span>  </span></span>If
the severity bit is set to 1, the method failed and encountered a fatal error.</p>
</li></ul><p><b>Exceptions Thrown:</b> No exceptions are thrown beyond
those thrown by the underlying RPC protocol <span><a href="../ms-rpce/290c38b1-92fe-4229-91e6-4fc376610c15" data-linktype="relative-path">[MS-RPCE]</a></span>.</p><p>The server SHOULD return the value of the <b>UninstallationBehavior</b>
ADM element.</p></div>