Microsoft Search Server Express 2010 seems like it won't index files on a Fileserver without the file extensions being manually added to the list of extensions it searches. I'd like a way to tell it to index every file regardless of extension. I appreciate that there won't be an IFilter for all files, but there is no reason why the filename and metadata can't be put in the index. I know an alternative is to use a script to enumerate all extensions on the Fileserver and then add these manually - but this means any filetypes added after that process will not automatically get indexed.
This is a pilot project and the actual Production system will probably be based on Sharepoint 2010, so if this is possible on Sharepoint but not on Search Server then that would also be good to know.