How do I access multiple (outlook) calendars with VBA?

[Vijay]

Hi,

I have an external calendar configured in Outlook via a calendar plugin.
Using VBA, how do I access this calendar? The following code snippet only
allows me to access the default calendar in Outlook:

Set myOlApp = CreateObject("Outlook.Application")
Set myNameSpace = myOlApp.GetNameSpace("MAPI")
Set myCalendar = myNameSpace.GetDefaultFolder(olFolderCalendar)

But I have no idea what the API is to access other calendars (or even find
out how many caledars there are, etc.).

Any help would be greatly appreciated.

Thanks in Advance!