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IPropertySystem::UnregisterPropertySchema method (propsys.h)

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Informs the schema subsystem of the removal of a property description schema (.propdesc) file, using a file path to the .propdesc file on the local machine.

Syntax

HRESULT UnregisterPropertySchema(
  [in] LPCWSTR pszPath
);

Parameters

[in] pszPath

Type: LPCWSTR

Pointer to the file path for the .propdesc file on the local machine.

Return value

Type: HRESULT

Returns one of the following values.

Return code Description
S_OK
 Indicates schema is unregistered.
E_ACCESSDENIED
 Indicates calling context does not have proper privileges.

Remarks

Call this method when the file is being uninstalled from the machine. Typically, a setup application calls this method before or after uninstalling the .propdesc file. This method can be called after the file no longer exists.

Call IPropertySystem::RefreshPropertySchema in order for the newly-unregistered schema files to be unincorporated from the search index and the schema subsystem cache.

This method fails with E_ACCESSDENIED if the calling context does not have proper privileges, which include write access to the local machine. It is the caller's responsibility to obtain privileges via least-privileged user account (LUA) mechanisms.

Requirements

Requirement Value
Minimum supported client Windows XP with SP2, Windows Vista [desktop apps only]
Minimum supported server Windows Server 2003 with SP1 [desktop apps only]
Target Platform Windows
Header propsys.h
DLL Propsys.dll (version 5.0 or later)
Redistributable Windows Desktop Search (WDS) 3.0

See also

IPropertySystem