Complex sentence: With one of the site's regulars, Bruce Harrison, Kleczynski wrote the inaugural version of the company's software, and the pair formally launched Malwarebytes in 2008 while Kleczynski was studying computer science at the University of Illinois.
Split into simpler sentences: With one of the site's regulars, Bruce Harrison, Kleczynski wrote the inaugural version of the company's software. Kleczynski and Harrison formally launched Malwarebytes in 2008 while Kleczynski was studying computer science at the University of Illinois.