The solution provided doesn't work -- if one wants WDS 3.X x64, then referring the user to the builtin Windows 7 v4 desktop search isn't a solution as it is a downgrade in functionality.
WDS 3.0 was released with the major feature being:
Windows Desktop Search 3.0 that adds: support for indexing UNC files.
WDS 4.0 removed the ability to index UNC files and, instead, added the ability to read remote Microsoft-indexes of UNC files. Meaning any remote file that isn't on an expensive MS Server won't be in any index.
Amusingly, even though WDS4.0 "can't index remote UNC files directly", their Windows Home Security V2.0 product has no problem examining each file for possible infections with no requirement for remote index support.
Amazing that examining remote files for thousands of specific signatures, can be done but user-searching is disabled.