Really Simple Syndication / Rich Site Summary or RDF is a site Summary, several similar forms of web syndication used by news websites and weblogs. It is good idea to provide RSS support for your forum.
Windows registry editor has simple search function. This is not good or powerful tool for power users. In addition, if you want to make bulk find and replace changes to registry, windows registry has no tool or option.
Registry Agent is a tool for bulk find and replace option. It is part of Creative Element Power Tools, which is a collection of productivity tools for Microsoft Windows XP, Windows Server 2003, Windows 2000, and Windows Me. This includes
Search and replace Registry entries – Perform quick Registry searches, view the results in a convenient list, and optionally search-and-replace Registry keys and values. You can download this tool here (free 1.5MB).
Caution: Before using these tools make sure, you backup the registry and important data.
How do I use Search and replace Registry entries tool?