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In 1989, Bill Gates sketched out Microsoft's plans to use BASIC as a universal language to embellish or alter the performance of a range of software applications on microcomputers.<ref>{{cite book |last1=Gates |first1=Bill |last2=Halvorson |first2=Michael |last3=Rygmyr |first3=David |title=Learn BASIC Now |date=1989 |publisher=Microsoft Press |___location=Redmond, WA |pages=ix-x}}</ref> He also revealed that the installed base of active BASIC programmers was four million users, and that BASIC was used three times more frequently than any other language on PCs.
When Visual Basic was released in 1991, it seemed logical to use Visual Basic as the universal programming language for Windows applications. Until that time, each Microsoft application had its own macro language or automation technique, and the tools were largely incompatible. The first Microsoft application to debut VBA was Microsoft Excel 5.0 in 1993, based on Microsoft Visual Basic 3.0. This spurred the development of numerous custom business applications, and the decision was made to release VBA in a range of products.
==Design==
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