Importing iCalendar files

[Jerry Wright]

I have recently upgraded to Outlook 2007. When I try to drag a iClaendar file
to my calendar, I get an error " Can not copy the items. xxxx.vcs is not a
valid Internet Calendar File". But I can take the same file and drag it to a
claendar in Outlook 2003. What am I doing wrong?

Thanks for the help in advance