IIS 6, Wildcard Application Mapping, and FrontPage

namespace YourNamespace
{
    public IgnoreRequestHandler : IHttpHandler
    {
        public IsReusable { get { return true; } }

        public void ProcessRequest(HttpContext context)
        { }
    }
}

<httpHandlers>
    <add verb="*" path="fpadmdll.dll" type="YourNamespace.IgnoreRequestHandler, YourDll"  />
</httpHandlers>