Funny thing is, Our support people have found grep outperforms the purge utility for purging. In a three tier script.
i.e. dumping using the utility, greping, then deleting from the cache. They are doing a test using the BOOST libraries molded into the purge at the moment. However I am still wishfull that the HTTP Extension model for client server capability could be implemented using existing API. I know you are busy, but is there any chance of pulling this off with the existing API.