Python/Excel VBComponents crash

I use Office 2000, and I have recently upgraded to python 2.3 and
win32all-155.exe

The following code worked in python 2.2:

xlApp = Dispatch("Excel .Application")
xlApp.Visible = 1
xlApp.Workbooks .Add()
xlApp.ActiveWor kbook.SaveAs(sy s.path[0] + '\\temp.xls')
wb = xlApp.Workbooks ("temp.xls")
wbc = wb.VBProject.VB Components # <---- CAUSES CRASH IN 2.3
xlApp.Quit()
del xlApp

but I get a GPE in 2.3, when the code finishes execution:
EXCEL caused an invalid page fault in
module OLE32.DLL at 0167:65f18ae3.

If you comment out the line
wbc = ...
then I get no GPE.
Any ideas?