The most popular and visible Active Scripting applications come from Microsoft; This isn’t surprising, since Microsoft developed the Active Scripting implementation.
Here we discuss Internet Explorer, Internet Information Server, and the Windows Scripting Host (WSH). Of these, IE is probably the most fun to play with, but has the least practical use. Using Active Scripting implies that the particular language is installed along with the browser, and for the vast majority of Internet Explorer users, this will not be true of Python. IIS and WSH are more practical, as they usually run on a machine over which you have more control; for example, it’s often not a problem to install Python on the same machine that runs IIS. Similarly, WSH is often used for Windows NT administration, so installing Python on the servers you are administering also shouldn’t present a problem.