SIW Standalone Version
Note: This review addresses v2008.10.28.0 of the software.
Feeling out of touch with your PC? You can ask the SIW tool anything about your PC--it'll give you a list of regional settings or scheduled tasks, or which DLLs are loaded and which are shared. How about which video and audio codecs you have installed, or details about your network or open ports? SIW has everything, offering lists that you can easily access from toolbar shortcuts or from a panel with a hierarchy list.
By the way, because this version of SIW is a stand-alone utility that you don't need to install, it'll run directly from a USB flash drive, a floppy (if you still have one), a burned rescue CD, or a network drive.
Be careful: Unless you uncheck the Add Crawler Toolbar to IE and Firefox box during the installation, SIW will automatically install that toolbar and make it your default search provider.