[lambda]

Wintel just refers to the instruction set, not the actual processor. The reason for using it in this case is that since ActiveX are compiled for x86, they won't run on other platforms that Windows runs on. In the past, Windows NT ran on PowerPC, Alpha, MIPS, and Itanium platforms; now Windows runs on ARM in the form of Windows Phone and Surface. So it's not just IE on Windows that is relevant for ActiveX, it's IE on Windows on x86. But that's a mouthful to say, so people abbreviate it to "Wintel".