Diskeeper 5.0 - Version 5.0 Diskeeper 5.0 is an extremely fast, safe and reliable defragmenter that maximizes speed and performance on Windows 95 and 98 workstations. The Diskeeper 5.0 workstation version will give your stand alone 95/98 system the same advanced defragmentation technology we build for mission critical NT networks. And it is the first defragmenter ever with full networkability on a mixed Windows 95/98/NT/2000 environment.