IUpdate::HandlerID property

Gets the install handler of the update.

This property is read-only.

Syntax

HRESULT get_HandlerID(
  [out] BSTR *retval
);

Property value

A string that specifies the Uniform Resource Identifier (URI) for the XML schema of the handler of the update.

Error codes

Returns S_OK if successful. Otherwise, returns a COM or Windows error code.

Remarks

The valid values for the HandlerID property include the following:

• The Command Line Installation Handler

  https://schemas.microsoft.com/msus/2002/12/UpdateHandlers/CommandLineInstallation

• The Inf Based Installation Handler

  https://schemas.microsoft.com/msus/2002/12/UpdateHandlers/InfBasedInstallation

• The Windows Installer Installation Handler

  https://schemas.microsoft.com/msus/2002/12/UpdateHandlers/WindowsInstaller

• The Package Installer for Microsoft Windows Operating Systems and Windows Components (update.exe) Installation Handler

  https://schemas.microsoft.com/msus/2002/12/UpdateHandlers/WindowsPatch

• The Component Based Servicing (CBS) Handler

  https://schemas.microsoft.com/msus/2002/12/UpdateHandlers/Cbs

Requirements

See also

IUpdate