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Phil Katz

  • 5 min read
  • 3 chapters

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Through DOS, Software and Microsoft Windows

A copyright lawsuit between System Enhancement Associates (SEA) and Katz's company, PKWARE, was widely publicized in the BBS community in the late 1980s. Katz's software business was very successful, but he struggled with social isolation and chronic alcoholism in the last years of his life.

Education and career

Phil Katz was a graduate of Nicolet High School in Glendale, Wisconsin. He graduated from the Computer Science Engineering program at the University of Wisconsin–Milwaukee. After his graduation, he was hired by the Allen-Bradley company as a programmer. He wrote code to run programmable logic controllers, which operated manufacturing equipment on shop floors worldwide for Allen-Bradley's customers.

PKARC and PKWARE

Katz left Allen-Bradley in 1986 to work for Graysoft, a Milwaukee-based software company. At the time, he had worked on an alternative to Thom Henderson's ARC, named PKARC. ARC was written in C, with the source code available on System Enhancement Associates' bulletin board system (BBS). PKARC, written partially in assembly language, was much faster. Katz had a special flair for optimizing code: besides writing critical code in assembly language; he would write C code to perform the same task in several different ways and then examine the compiler output to see which produced the most efficient assembly code. He first publicly released only PKXARC, an extraction program, as freeware. Its much greater speed caused it to spread very quickly throughout the BBS community. Strong positive feedback and encouragement prompted Katz to release his compression program, PKARC, and eventually to make his software shareware. He founded PKWARE, Inc. (Phil Katz Software) in 1986, with the company's operations located in his home in Glendale, Wisconsin, but he remained at Graysoft until 1987. Steve Burg, a former Graysoft programmer, joined PKWARE in 1988.

PKZIP

PKZIP made Katz one of the most well-known shareware authors of all time. Although PKWARE became a multimillion-dollar company, Katz was more noted for his technical expertise than business prowess. His family assisted him in running the company, but he eventually fired them when they denied him access to the company's profits.

Katz was adamantly opposed to Microsoft Windows in the early 1990s. This led to PKWARE missing out on the opportunity to be the first to bring PKZIP to the platform, with WinZip becoming the standard tool on the platform instead.

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