Can't open emails with Calendar invites on Windows Live Mail

Hi there, 

I have recently encountered a problem in my Windows Live Mail account, where I am not able to open emails which have a Calendar Invite attached to it. 
ie. If you open this on your phone, it will opt for you to accept or decline to the event listed in the email to add to your calendar. It is most likely a Google Calendar invite, but I am not sure as it works on my iPhone 5. 

Basically, I believe that if a simple task like opening such an email is not possible for Windows Live Mail, I may think about switching services, as it is such a fundamental problem. 

PS. I am able to open the email on my iPhone 5.

Thanks,

Eric

Original title: Windows Live Mail Problem