PSUnregisterPropertySchema function (propsys.h)
Informs the schema subsystem of the removal of a property description schema file.
Syntax
PSSTDAPI PSUnregisterPropertySchema(
[in] PCWSTR pszPath
);
Parameters
[in] pszPath
Type: PCWSTR
Pointer to the full file path, as a Unicode string, to the property description schema (.propdesc) file on the local machine. This can be either a fully-specified full path, or a full path that includes environment variables such as %PROGRAMFILES%.
Return value
Type: HRESULT
Returns one of the following values.
| Return code | Description |
|---|---|
|
The schema was unregistered. |
|
The calling context does not have proper privileges. |
Remarks
This function is a wrapper for the schema subsystem's implementation of IPropertySystem::UnregisterPropertySchema. Call this method when the file is being uninstalled from the computer. 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.
This function fails with a code of E_ACCESSDENIED if the calling context does not have proper privileges, which include write access to HKLM (HKEY_LOCAL_MACHINE). It is the responsibility of the calling application to obtain privileges through User Account Control (UAC) 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 |
| Library | Propsys.lib |
| DLL | Propsys.dll (version 5.0 or later) |
| Redistributable | Windows Desktop Search (WDS) 3.0 |