dBASE III Plus v1.1

Ashton-Tate dBase was an early popular database management system for CP/M and MS-DOS. It was regarded as one of the killer applications for CP/M that achieved good success, as license prices were around $700 per installation for dBASE II. At the time of conception Ashton-Tate was a garage based company but quickly grew into one of the 'big three' software companies.

Enjoying large success on CP/M dBASE II was ported to DOS and the IBM PC in 1982. By the start of 1984 dBASE II had retained about 70% of the computer database market with over 150,000 copies sold.

After 2 years since announcement, Ashton-Tate released dBASE IV in 1988 which would be seen as it's downfall, as it was unable to compete against newer SQL offerings. It was eventually sold to Borland in 1991. Many dBASE developers would eventually start working in the closely related Fox Software / Microsoft FoxPro system.

Wanted: dBase Mac

dBASE III+ introduced numerous new features, including a character based menu system; however it still had large problems with maturing and was subject to a copy protection influenced recall. It was still a widely successful product as it earned Ashton-Tate $300 million in 1987's sales.

A large 3rd party industry sprung up to support dBASE with addons. One specific popular addon to the dBASE system were compiliers which transformed a dBASE project into a standalone executable. The most popular compiler was Clipper from Nantucket Software. The solution from Ashton-Tate was to license a $395 per-machine runtime copy of dBASE and as a result, the compilers dented Ashton-Tate's income.

Installation instructions

For DOS "IBM PC, PC/XT, PC/AT, 3270 PC and 100% compatibles"

Wanted: Manual scan, the later Borland re-release

Product type
Application Database
Release date
Minimum CPU
User interface


Download Name Version Language CPU File type File size
dBase III Plus 1.1 (5.25-360k) III Plus 1.1 English x86 5¼ Floppy 1.17MB
dBase III Plus 1.1 [Dutch] (5.25-360k) III Plus 1.1 Dutch x86 5¼ Floppy 486.95KB


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