DriveSpace

DriveSpace was a Microsoft Windows 95 and Windows 98 utility for compressing file allocation table (FAT) volumes.

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What is DriveSpace?

A Microsoft Windows 95 and Windows 98 utility for compressing file allocation table (FAT) volumes. You can use DriveSpace to free up disk space for users on workstations or for network shares on servers.

DriveSpace uses disk compression techniques to pack more information onto a disk than is normally possible with uncompressed files.

How it works

DriveSpace creates a read-only, hidden system file called a compressed volume file (CVF). This file, typically called drvspace.000, contains all the files and folders on the original uncompressed volume. A driver called drvspace.bin in the root of the active partition is used at boot time to mount the compressed drive.

Windows 95 OSR2 (OEM Service Release 2) and Windows 98 have an enhanced version of DriveSpace called DriveSpace3 that supports CVFs of up to 2 GB in size. To compress a drive, type drvspace at the command prompt. In the DriveSpace 3 dialog box shown on the screen, highlight the volume you want to compress. You have several ways to compress data with DriveSpace 3.

Graphic D-38. Disk Compression Settings dialog box.