Isokangas, Erik HTC/DE/FRA writes:

I'm looking for a product or products that will allow me to catalog/index files that are added into a specific network directory - something like LocalFS with WebDAV support and cataloging. The intent is to provide a search engine for documents/files stored by users (possibly in a directory tree structure on the network). I am not sure, whether LocalFS already support WebDAV. It might be.

It supports cataloging for a long time. However, indexing is not real time or online. You need to explicitly require cataloging the new file system content. Dieter