Always using the cache to load swf

[you_rock]

There are plenty of threads here on how to prevent the swf from being loaded from the cache, but I want to always have it loaded from there (so my bandwidth will not be used up).

I understand it is a function of the server, server OS, and client browser (largest factor), but any help here would be greatly appreciated.

I am running Windows 2003, IIS, with .Net. I want the page to check the cache first, see if there is a swf, and load it from there. Is it possible that if the client prefs say, "Always reload page" I can still force it to cache?

Thanks!