You know it has nothing to do with Apple? Microsoft provide Exchange access to mobile devices for for Hotmail/Live/Outlook accounts. Microsoft deny EAS access to desktop applications. Supposedly it's possible to subscribe to the calendar in Calendar app but I think the shared link Outlook.com provides is dodgy. I'll post back if I find a solution.
I am faced with the same issue. I tried twice in 2012 and 2013, I was unsuccessful. I thought of trying again with the hope that there was a new way of doing it.
I found this on the internet, but it does not work: http://itsolutionsblog.net/how-to-synchronize-hotmail-calendar-with-your-mac/
In the blog, it accepts "webcal," but when I go to Hotmail I get a link that starts with "webcals."
Have you found a solution? If yes, please pass it unto me.
Thank you for your time and support.
Message was edited by: VA IT Girl
The solution at the link you provided works just fine. Read the "Important" notes the author includes.
In this case, when you get the link for your Outlook calendar it will start with webcals. The author of the article in the link writes to change that to http. In my case, I figured that s in webcals is for the secure so I changed it to https.
In the end, the link I copied and pasted from my Outlook calendar looked something like this:
and I changed it to this when I pasted it into iCal.
This works just fine for being able to view your calendar and get alerts. Of course, you can't edit it without going into a browser.