|IIS MetaBase Editor|
This is a free tool from Microsoft and can be used to display and edit the IIS MetaBase. In a lot of cases the "IisDumpMetaBase.VBS" tool will be of more use.
A screen dump of the tool follows:
|MetaBase in IIS 6+ is XML|
Note that the metabase in IIS version 6 onwards is an XML file called "c:\windows\system32\inetsrv\MetaBase.xml". The "History" subdirectory in the same location holds backups.