Accessing raw HTTP response data through unmanaged ISAPI Extension

Question

Howdy all,

I have a web server farm (Win2k3 + IIS6) with a mixture of vendor-provided and homegrown ASP.NET applications.

I would like to have a mechanism by which I can log the entire bodies of both the request and the response from a given HTTP request/response pair.

I can't use an HttpModule or its ilk because not all of the applications are running on the same version of .NET; I have some 1.x and 2.x.

I started down the ISAPI Filter path until I learned that IIS6 worker process isolation prevents scraping the raw inbound request. Many sources recommended switching to an ISAPI Extension, which I'm fine with doing, only I can't figure out how to scrape the response.

Any light you can shed will be greatly appreciated.

Thanks, Owen