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IUpdateServerConfiguration.DownloadUpdateBinariesAsNeeded Property

Gets or sets whether updates are downloaded only when they are approved.


Namespace: Microsoft.UpdateServices.Administration
Assembly: Microsoft.UpdateServices.Administration (in Microsoft.UpdateServices.Administration.dll)
bool DownloadUpdateBinariesAsNeeded { get; set; }
/** @property */
boolean get_DownloadUpdateBinariesAsNeeded ()

/** @property */
void set_DownloadUpdateBinariesAsNeeded (boolean value)

function get DownloadUpdateBinariesAsNeeded () : boolean

function set DownloadUpdateBinariesAsNeeded (value : boolean)

Property Value

If true, only approved updates are downloaded. If false, all updates are downloaded after the WSUS server synchronizes with Microsoft Update.

WSUS ignores this property if HostBinariesOnMicrosoftUpdate is true.

The synchronization process downloads the update's metadata and license agreement. Once the metadata is downloaded, WSUS uses HostBinariesOnMicrosoftUpdate and DownloadUpdateBinariesAsNeeded to determine if the update file is downloaded. If both properties are false, WSUS downloads the update file. If HostBinariesOnMicrosoftUpdate is false and DownloadUpdateBinariesAsNeeded is true, WSUS downloads the update file only after it is approved for deployment.

Setting DownloadUpdateBinariesAsNeeded to false saves disk space on the WSUS server, but may delay deployment to the clients.

An administrator can manually approve an update or create an automatic approval rule to automatically approve an update and its revisions.


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Development Platforms

Target Platforms

Windows Server 2008, Windows Server 2003, Windows Server 2008 R2
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