iTag writes all metadata to the individual media files however it also maintains an internal index to enable fast searching.
The index is automatically updated whenever a file is changed from within iTag however if you are in a corporate environment
with multiple users tagging and searching then it becomes a problem when the individual indexes on the different PC's become out of date.
To share an index between multiple users, choose a location on a shared drive to which all users have read and write access. Within iTag on each PC,
click Edit, Options, Search, Advanced.
Browse to the chosen location on the shared drive and click OK.
Repeat for all PCs using iTag and you now have a shared index that is communally updated by all users as they work.
Tip: For faster deployments, the index location is stored at HKCU\Software\iTag in the registry,