IIS Express defaulting to port 44300 for HTTPS when enabling SSL

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This question has been answered by Divya over on the IIS forums.

Once you enable SSL for a website in WebMatrix, it defaults to port 44300 and does all the bindings in the background. I am hoping that you tried to change this port to 443 in the config file. Once that is done and saved, you also need to modify the binding in http.sys. You would need to delete the existing entry for port 44300 and add the entry for port 443.
To do this, you could use httpcfg (WinXp/Win2003) or ‘netsh http’ (WinVista/Win2K8/Win7).
Here are the commands for netsh:

1) Get the appid and certhash for the existing entry of 44300 (I
assume, you are going to use the same certificate which WebMatrix
installs by default. If you want to change the certificate as well,
get the certificate hash of the certificate from the certificate
store): netsh http show sslcert. In the output search for entry for
port 44300 and copy certhash and appID.

2) Delete the entry for 44300: netsh http delete sslcert ipport=0.0.0.0:44300

3) Add a new entry for port 443 with certhash and appID copied in step
1. netsh http add sslcert ipport=0.0.0.0:443 certhash=<certhash> appid=<appid>

After configuring the entry in http.sys, you need to restart http
service for the changes to take effect.

net stop http

net start http

As noted by others, there are several nice ways of getting your SSL certs.

netsh http show sslcert > output.txt

or (my preferred method):

netsh http show sslcert | clip

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