I've traced the freeze out of all requests to be a limitation of IIS7 on Vista. On 2003 Server now IIS is multithreading requests from different users for the same web site.

HOWEVER, I'm now working on enabling the user that is doing the file download, to be able to continue working while the file is being transferred. I am using the ASP directive ENABLESESSIONST ATE=FALSE at the top of the download asp page. This page instantiates...

I have an ASP page the has session state disabled. This page creates an instance of a COM component written in C++ (threading model is BOTH, using ATL-FREE_THREADED macro in stdafx.h, supports free threaded marshaller). The COM component streams files to the ASP response buffer.
This component was created to support downloads of multi-gigabyte files. (Yes.. I know not the best answer but what the client requested.) I added a throttle...

IIS6 (x86) - Classic ASP application - I am downloading files via calls to BinaryWrite from a C++ COM component. The ASP DLL doesn't seem to do a good job limiting memory usage based on the bandwidth and latency of the network. When streaming very large files, memory usage approaches to 2GB limit and sometimes results in out-of-memory errors.
I'm considering writing my own throttle in my C++ component that polls private bytes. The only...