POSH module to do some calendar stuff with Outlook
Code for Add-CalendarMeeting originaly from http://newdelhipowershellusergroup.blogspot.se/2013/08/powershell-and-outlook-create-calendar.html
Add-CalendarMeeting - Adds a meeting to Outlook
Get-iCal - Reads iCal data from file or URL and formats it for pipe'ing to Add-CalendarMeeting.
For details use
get-help Add-CalendarMeeting
get-help Get-iCal