From the website:
Here’s another quickstart tutorial on NHibernate Search for NHibernate 3.0 using Lucene.Net. We’re going to be using Fluent NHibernate for NHibernate but attributes for NHibernate Search.
NHibernate is a mature, open source object-relational mapper for the .NET framework. It’s actively developed , fully featured and used in thousands of successful projects.
For those of you who are more comfortable in a .Net environment.