Class not registered???

[maximilianscherr]

i'm doing this and getting this error

import win32com.client
>>> shell = win32com.client.Dispatch("WScript.Shell")
Traceback (most recent call last):
  File "<interactive input>", line 1, in ?
  File "C:\Python22\win32com\client\__init__.py", line 94, in Dispatch
    dispatch, userName = dynamic._GetGoodDispatchAndUserName
(dispatch,userName,clsctx)
  File "C:\Python22\win32com\client\dynamic.py", line 81, in 
_GetGoodDispatchAndUserName
    return (_GetGoodDispatch(IDispatch, clsctx), userName)
  File "C:\Python22\win32com\client\dynamic.py", line 72, in 
_GetGoodDispatch
    IDispatch = pythoncom.CoCreateInstance(IDispatch, None, clsctx, 
pythoncom.IID_IDispatch)
com_error: (-2147221164, 'Klasse nicht registriert', None, None)
____________________________^
____________________________| "Class not registered"

also happens with activepython 2.2.0 alpha