SpaceInUse enables you to easily see where how used disc space is distributed between the various directories on each drive. The directories that are using the largest amount of space are listed even if they are located several directory levels down.
You can download the full version of SpaceInUse and use it without restriction for 30 days. To continue to use it after that, you need to purchase a license.
The license fee for the full version is £20 (Excluding vat) and that includes 1 year of support and all updates that are issued during the year. After the first year support and updates are avalable for £2 per year.