I have IIS serving a web app on port 80
and also have another app Visual SVN server which uses 443. IIS if it starts first, takes this port even though nothing is configured to use it.
so how do I stop it from using it?
Just edit the site bindings and remove the SSL identities:
But first you need to remove the requirement for the web site to use SSL encryption, if it's active:
after a bit of a look...
in C:\Inetpub\AdminScripts there is a script called adsutil.vbs
cscript adsutil.vbs set w3svc//securebindings ""
where the website id is found by going to IIS admin -> Website properties -> Website -> in the section "Enable Logging" select "Properties" then :-
there's the logfile name W3SVC\exyymmdd.log
in my case, it was 1.