Provide a Windows GUI that allows me to enter a query and get the matching entries from any docs on my machine. If I click on the returned entry the doc opens. In the query it should be easy to speicfy subsets of the docs. These would be separate indicies (swish-e supports this). Maybe check boxes to specify the subsets.
Winodows 2000 (PC), however make architecutre modular (gui, data structures, etc. separate) so that could be ported to other architectures.