As far as I know isapi is a technology related to IIS servers, so Neil may be right. I.e. one of the possibilities to run PHP on IIS is to use php4isapi.dll.
But that doesn't really matter. Whatever this DLL is and does, and whoever forces you to download it or just misconfigured a server, some editors don't like this kind of thing.
<img src="/images/icons/smirk.gif" alt="" />
But that doesn't really matter. Whatever this DLL is and does, and whoever forces you to download it or just misconfigured a server, some editors don't like this kind of thing.
<img src="/images/icons/smirk.gif" alt="" />