Open MS Outlook *.pst

Hi,

I like to open the MS Calendar (Outlook.pst).
I can open a dialog, choose the Outlook.pst and the calender will be open.
The problem, it´s allways the calendar from the current profile but I like to open a pst file from a other directory.
The calendar will also not open, if MS Outlook isn´the standard mail client.
Is there a trick to open the choosed pst file?

Hi,
I like better to describe what I mean.
I open in a program a MS outlook file, as sample

SetDataProvider-->
'MAPI MS Outlook data provider
  "Provider=MAPI;Data Source=C:\test\outlook.pst"
The calender will open. Now I like to open a second file in the program.
 
I choose the file like
SetDataProvider-->
'MAPI MS Outlook data provider
  "Provider=MAPI;Data Source=C:\test\outlook2.pst"

Now the calender C:\test\outlook.pst will open as second.
I can only one file at a time.

Thanks,

I like to try it.