PDFlib TET PDF IFilter 4.0 Manual

Table 3.3 XML configuration for Windows Search
element attribute requirements and recommendation
Filtering useIdentifier Must be true since Windows Search supports only the GUID+ID method
for identifying properties, but not GUID+name (see »XML configuration
for GUID+name treatment of properties«, page 43).
Property identifier Required since Windows Search supports only the GUID+ID method for
identifying properties, but not GUID+name (see »XML configuration for
GUID+name treatment of properties«, page 43).
PropertySetCollection shell Should be true to support the shell properties known to Windows Search
(note that true is the default anyway).
registerpropdesc "predefined_properties.propdesc"
Note Please read the section »Running privileged commands on Windows Vista/7«, page 6, if you
are working on Windows Vista or Windows 7.
The Windows property system stores the names of property description files in the following
registry keys (and increasing numbers in the last component of the key):
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\PropertySystem\PropertySchema\0000
The registerpropdesc tool will emit an error message and a HRESULT error value if the
property file could not successfully be registered (e.g. if a duplicate property was detected).
In case of an error you can check the application event log for more details:
> Start, Settings, Control Panel, Administrative Tools, Event Viewer
> Click on Application in the left pane.
> In case of a problem with property registration there will be an entry with source
Microsoft-Windows-propsys. Double-click on the line containing the entry and examine
the error message (e.g. Omitted duplicate property).
Alternatively, you can use the HRESULT value emitted by registerpropdesc.exe to analyze
the problem. A list of HRESULT values and explanations can be found at
msdn.microsoft.com/en-us/library/cc231198.aspx
A shared source command-line tool called prop.exe offers functionality similar to
registerpropdesc, plus additional features for dealing with the Windows Property System:
prop.codeplex.com
Requirements for registering property descriptions. Note the following important requirements
when registering property description files for Windows Search:
> In order for custom properties to become available for searching, you must register
the property description, stop and restart the search service, and force a rebuild via
the Windows Search options:
registerpropdesc "predefined_properties.propdesc"
net stop wsearch
net start wsearch
...rebuild the catalog (see »Starting/Stopping Windows Desktop Search«, page 7)...
48 Chapter 3: Metadata Properties