IUpdateLockdown::LockDown method (wuapi.h)

Restricts access to the methods and properties of the object that implements this method.

Syntax

HRESULT LockDown(
  [in] LONG flags
);

[in] flags

The option to restrict access to various Windows Update Agent (WUA) objects from the Windows Update website.

Setting this parameter to uloForWebsiteAccess or to 1 (one) restricts access to the WUA interfaces that implement the IUpdateLockdown interface.

For a list of the methods and properties that the WUA interfaces restrict when this value is specified, see the "Remarks" section.

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

The following table identifies the interfaces that implement the IUpdateLockdown interface.

WUA object	Restricted methods and properties
IAutomaticUpdates	Pause Resume
IAutomaticUpdatesSettings	Save
IUpdate	AcceptEula CopyFromCache CopyToCache
IUpdateDownloader	BeginDownload Download EndDownload IsForced (cannot set)
IUpdateInstaller	BeginInstall BeginUninstall EndInstall EndUninstall Install IsForced (cannot set) Uninstall
IUpdateServiceManager	AddScanPackageService RemoveService SetOption
IWebProxy	Address (cannot set) AutoDetect (cannot set) BypassList (cannot set) BypassProxyOnLocal (cannot set) SetPassword UserName (cannot set)

Requirement	Value
Minimum supported client	Windows XP, Windows 2000 Professional with SP3 [desktop apps only]
Minimum supported server	Windows Server 2003, Windows 2000 Server with SP3 [desktop apps only]
Target Platform	Windows
Header	wuapi.h
Library	Wuguid.lib
DLL	Wuapi.dll