Microsoft lost that fight so badly long ago against Sun that Internet Explorer and Windows documentation for like a decade referred to the language as "JScript" (and also tried to make VBScript a viable alternative partly to avoid even accidentally using Sun's trademark) to the bemusement of everyone. Interesting to wonder if the web would have been a little better if Microsoft had won that trademark battle at the time or if Sun had donated the trademark to ECMA so that official standards didn't have to be named EcmaScript.
