http://msmvps.com/blogs/richardsiddaway/archive/2008/07/19/sorting-a-hash-table.aspxThere is a really good PowerShell script for working with indexed files - scans or photos and renumbering to cope with missing numbers available from http://www.tellingmachine.com/post/2008/07/Renaming-a-series-of-indexed-files-with-Powershell.aspx OneenCommunityServer 2008.5 SP2 (Build: 40407.4157)