How does IIS / ASP.NET handle dead connections? (no HTTP Keep-Alive in effect)

Question

Can IIS / ASP.NET make use of the TCP keepalive option to detect dead connections? Note that these connections do not have the HTTP Keep-Alive option in effect. These are connections, just abandoned by the clients, leaving IIS / ASP.NET threads hanging, waiting for data. Are there mechanisms in place by which IIS / ASP.NET handles such scenarios?

Answer 1

ASP.NET only handles HTTP data sent over the connection, the period where there is no HTTP happening, but the TCP connection is kept alive means nothing to it.

IIS will not keep the TCP connection alive indefinitely, but periodically checks them for idleness.