PerfectDisk 2008 Professional Service Pack 2 Build 52 

PerfectDisk redefines enterprise disk defragmentation addressing an issue that Microsoft, in various published artices, states is often the cause of poor system performance on a system. Provides the most comprehensive solution for defragmentation by optimizing virtually every file on the system, including the Master File Table ($MFT), all metadata, paging files, and directories. Patented SMART Placement technology arranges files on a disk to ensure that free space is consolidated and the future rate of fragmentation is minimized.