Diskeeper is a disk defragmenter for Microsoft windows. Diskeeper 2007 represents a quantum leap in system performance, enabling you to run your computer at the height of its potential, 100% of the time, and for the life of your systems.

The main features of Diskeeper 2007 (now compatible with Vista) include:
- InvisiTasking, which is coined from "invisible" and "multitasking" and is a technology which allows any system maintenance task to run invisibly in the background.
- New real-time defragmentation that automatically and transparently handles fragmentation as it occurs providing maximum system performance at all times.
- I-FAAST™ 2.0 (Intelligent File Access Acceleration Sequencing Technology) which dramatically increases file access by up to 80% above and beyond the improvement of defragmentation alone.
- Terabyte Volume Engine™ 2.0 - Powerful defragmentation for high capacity & high traffic servers with disk volumes containing hundreds of thousands to millions of files (e.g. NAS, RAID, and SAN). Also allows unobtrusive, thorough free space consolidation on busy 24/7 servers.
- Automatic online directory consolidation that boosts anti-virus scans and back-up speed. Every system will benefit from Diskeeper 2007. A site-wide Diskeeper installation will improve performance and reliability on all systems.

Here"s the list of enhancements:
1. This product always requires Product Activation upon install.
2. Silent Activation is enabled which will automatically activate when an internet connection is found.
3. If an Internet Connection is not found, the ability to manually activate the product is available (also for PC"s not connected to the Internet).
4. Fixed some User Interface refresh issues.
5. Changes have been made to prevent Diskeeper from unnecessarily polling floppy disk drives in Vista
6. Reliability and performance issues handled.
7. Diskeeper now preserves timeframe exclusions when imaging across multiple machines.
8. Diskeeper defragments NTFS Metadata Files ($Extend) in XP and above online. This includes the USN Journal.
9. Diskeeper now recognizes Encrypted Virtual Drives.
10. Fixed minor issue regarding MFT fragmentation reporting.
11. Boot-Time Directory Consolidation is now available for FAT volumes.
12. Some 508-compliance (accessibility) issues have been fixed.
13. Fixed InvisiTasking graphs for Foreign Operating Systems.
14. I-FAAST Measurement fixed for Foreign Operating Systems.
15. Fixed various minor Vista Compatibility Issues.