Not wanting to be a complete 'smarty-pants' here, I'll ask 'are you using/running ISAPI modules?"
I have a hard time imagining how small the class of XAMPP on Windows users are that have implemented ISAPI modules is (infinitesimal comes to mind) ISAPI modules generally are a part of an IIS environment. I use ISAPI modules and filters, but only on my IIS servers. They are 'heavy-duty' components, almost always a custom or customizable design and almost never seen outside a production environment. Mine are commercial security wrappers, require a systems engineer to grok and are quite expensive. If someone WERE running ISAPI modules on Windows under Apache, I'm 99.995% sure they would do a full Apache install, not on XAMPP.
I agree that it would be wonderful to have a 'refresh' on XAMPP for Windows, but I suspect this is an almost negligible threat.
Googling 'ISAPI modules' will be instructive. Of course, there is always that .005%, LOL.