Question: Is there any way of creating a public folder calendar using the Exchange Management Shell?

Outlook is not installed on the Exchange Server nor do I want to install it. Access is very limited to client computers so I would rather create it from the server itself. Surely it can't be that difficult to do?

I have tried using the PFDAVAdmin tool but it fails to connect despite numerous attempts and I have given up on it for now.

Answer: 
Yes, so far Amazon does not offer a GUI for Auto Scaling. You do have to use the command line tools (in conjunction with CloudWatch to setup monitoring to add/remove auto scaling instances), or use the APIs. In addition to Scalr you can also try
[EZAutoScaling](http://www.ezautoscaling.com) (only does Auto Scaling GUI, very cheap) and [Ylastic](http://www.ylastic.com) (does Auto Scaling GUI plus a ton more, a little more expensive).
Disclosure: I was slightly involved in EZAutoScaling.
To follow up on what Ernest said, it is indeed correct. Amazon autoscaling features works pretty well. But in order to use it you will need to do API calls.

However, if you want out-of-the-box autoscaling, you should consider using a third party cloud management platforms such as RightScale or [**Scalr**](http://scalr.net) (where I work). You will be able to scale based on CPU, Ram, Disk io, Network io... The autoscaling process itself is managed a bit differently. You can have more info on the [wiki](http://wiki.scalr.net/FAQ/Scalr_vs_AWS_auto-scaling).