COM/MAPI changes from 1.52 -> 2.1?

[Grant Edwards]

Due to reasons beyond my control, my Win32 box was upgraded
from Win98 to Win2K.

I've installed Python 2.1 along with the latest Win32All, and
my trusty Python MAPI mail-fetcher program now crashes:

Traceback (most recent call last):
  File "mfetch.py", line 330, in ?
    fetcher.Logon()
  File "mfetch.py", line 111, in Logon
    self.session = win32com.client.Dispatch("MAPI.Session")
  File "C:\Python21\win32com\client\__init__.py", line 94, in Dispatch
    dispatch, userName = dynamic._GetGoodDispatchAndUserName(dispatch,userName,clsctx)
  File "C:\Python21\win32com\client\dynamic.py", line 80, in _GetGoodDispatchAndUserName
    return (_GetGoodDispatch(IDispatch, clsctx), userName)
  File "C:\Python21\win32com\client\dynamic.py", line 71, in _GetGoodDispatch
    IDispatch = pythoncom.CoCreateInstance(IDispatch, None, clsctx, pythoncom.IID_IDispatch)
pywintypes.com_error: (-2147221005, 'Invalid class string', None, None)

I have no idea if this is due to the Win98->Win2K transition or
by the 1.52->2.1 transition. Can anybody point me to an example
app that uses MAPI, or to hints for porting COM apps from 1.52
to 2.1?

-- 
Grant Edwards                   grante             Yow!  Did I SELL OUT yet??
                                  at               
                               visi.com