2.2.5 ImplementationSpecificPathProperty
The ImplementationSpecificPathProperty represents a path to a resource in a format that is specific to a COMEV server implementation. For writes to properties of this type, a server SHOULD accept a path in Universal Naming Convention (UNC) and MAY<2> accept additional formats (for example, a path in a local namespace to a local resource).
Properties of this type MUST be specified as a BSTR and MUST have a character length of at least 1 and at most 260.