devilboy: you're wrong... WDS is a local search engine with indexing, LSXCommand cannot help to find files on your machine as I remember

dmak: unfortunaly there is no way to launch interactive WDS since there is a complex undocumented IPC here =( all you can use is a Explorer-like fast search (.exe file in the WDS folder).

Or try Google Desktop Search (MUCH worse with some languages such as Russian, but very good if you're English native speaker)

BTW LS really need some AppBar stuff to be more compatible with a lot of cool applications...