Microsoft was also first to the table with DHTML, or what we now call DOM manipulation. The combination of DOM manipulation and asynchronous HTTP was like crac

Microsoft was also first to the table with DHTML, or what we now call DOM manipulation. The combination of DOM manipulation and asynchronous HTTP was like crack for developers, and resulted in an explosion of IE only business apps, which caused IT departments to become IE-only, which led to a feedback effect. All the crappy IE-only back-end systems that still fester in enterprises today hark back to those days.