A million times this. Windows search is, as near as I can tell, completely worthless and I have to install other utilities to have working basic search.
I don't need or want anything fancy like semantic searching. I just want to be able to grep and find things by filename.
The server version called "Windows Search Services" was rather alright. It was even integrated into the Win7 Libraries and you could search through contents server-side from Explorer.
It supported plugins and was reasonably fast. Needed a lot of RAM though and some admin to babysit it.
I don't need or want anything fancy like semantic searching. I just want to be able to grep and find things by filename.