C# Definition:

[Flags]
enum IFILTER_FLAGS {
   /// <summary>
   /// The caller should use the IPropertySetStorage and IPropertyStorage
   /// interfaces to locate additional properties.
   /// When this flag is set, properties available through COM
   /// enumerators should not be returned from IFilter.
   /// </summary>
   IFILTER_FLAGS_OLE_PROPERTIES = 1
}

VB Definition:

<Flags> _
Enum IFILTER_FLAGS
   IFILTER_FLAGS_OLE_PROPERTIES = 1
End Enum

Notes:

None.