Spolsky has a good essay on that (and how they've lost): http://www.joelonsoftware.com/articles/APIWar.html http://www.joelonsoftware.com/articles/APIWar.html

Spolsky has a good essay on that (and how they've lost): http://www.joelonsoftware.com/articles/APIWar.html http://www.joelonsoftware.com/articles/APIWar.html tl;dr version: Windows is a platform nobody wants to develop for. Windows developers have moved to the web (or to other platforms eg: Mac). The rest of the article justifies these two assertions.