myvtm/Module/mod_download/DownloadService.xml

<?xml version="1.0" encoding="gb2312" ?>
<entity name="Download">
	<class name="DownloadService" overlap="true" exclusive="false">
    <twoway name="DownloadFile" overlap="true">
      <req>
				<param name="strFileName" type="string"/>
        <param name="dwExpireTime" type="uint"/>
       </req> 
		</twoway>
		<twoway name="IsDownloading" overlap="true">
			<res>
					<param name="bDownloading" type="bool"/>
			</res>
		</twoway>
    <twoway name="CancelDownloadFile" overlap="true">
      <req>
        <param name="strFileName" type="string"/>
      </req>
    </twoway>
    <twoway name="QueryDownloadState" overlap="true">
      <req>
        <param name="strFileName" type="string"/>
      </req>
      <res>
        <param name="iDownloadState" type="uint"/>
      </res>
    </twoway>
	</class>
  <message name="DownloadResult">
    <param name="strFileName" type="string"/>
    <param name="errorCode" type="uint"/>
    <param name="errorMsg" type="string"/>
  </message>
  <message name="DownloadProgress">
    <param name="currentFile" type="string"/>
    <param name="progress" type="uint"/>
    <param name="fileNum" type="uint"/>
  </message>
</entity>