Disk Technician (1987) 0 Utility DOS

Disk Technician, from Prime Solutions Inc., is a hard disk utility and surface monitor. It contains an interleave adjuster and pattern tester similar to Spinrite. The Gold version also includes a defragmenter and disk-level virus protection.

• 4.x
• Advanced 3.x
• Gold 1.x

DiskClone (1998) 0 Utility DOS

DiskClone, from Quarterdeck, is a simple, professional, small, powerful, and easy to use hard disk cloning tool. It can copy a drive to another internal or external drive of different sizes. It can be used as a backup, or a migration tool to a new drive. It all fits on a single floppy disk. "Corporate" editions.

• 1.0

Diskette Manager (1988) 0 Utility DOS

Diskette Manager, from BLOC publishing, previously from Lassen Software, is a software tool for the IBM PC and Tandy that inventories the contents of your floppy disks in to a database. It enables you to quickly and easily search for files or print disk labels.

• 3

DiskLock (1993) 0 Utility DOS Windows

DiskLock, From Fifth Generation Systems, and later from Symantec as Norton DiskLock, is a data security tool that can lock a hard disk or individual files or directories so that it requires a password to access any data. It can also log activity to detect unauthorized access attempts. It also features the ability to lock the system after an idle usage period. There were versions for PC and Mac.

• 2.x
• 3.x

DoubleDisk (1991) 0 Utility DOS

First released in 1989, DoubleDisk was the first real-time drive compression product for DOS. It is a fairly no-frills program and sticks to what it does best. It was relatively low cost compared to its later competitors. and Expandz! Plus

• 2.5
• 2.6

IBM Diskette Librarian (1982) 1 Utility DOS

IBM Diskette Librarian is a small database that keeps track of your files across multiple floppy disks.

• 1.00

IBM Fixed Disk Organizer (1984) 0 Utility DOS

IBM Fixed Disk Organizer is a simple menu program for DOS. It was marketed by IBM for use on their IBM XT. Using this shell, you will no longer have to repeatedly muddle through DOS commands to get to your commonly accessed applications. You can customize your menu items, and organize them in customizable categories. It also lets you set a password for menu items, and you may customize the screen colors. While there were many, many better menuing programs produced for DOS, Fixed Disk Organizer was a standard IBM offering.

• 1.00

SoftLogic Disk Optimizer (1987) 0 Utility DOS

Disk Optimizer, from SoftLogic Solutions Inc., was a low cost disk defragmentation utility that competed directly against the Norton Utilities. Like other disk optimizers, it re-arranges where files are stored on a hard drive to decrease file access time. It was, however, not as full featured or robust as the Norton Utilities.

• 2.x