MAPI spooler getting shut down for Outlook 2k

[Bhushan]

Hi,
I am writing a MAPI transport provider that is working fine with
Outlook XP. But when I tested the same with the Outlook 2K, when the
transport provider is loaded, the spooler is getting shut down.
Can anyone tell about the possible reasons which could cause the shut
down of spooler?
Also are there any differences in the Transport provider loading in
Outlook 2K and Outlook XP as with Outlook XP i am running fine but
getting the problem only with Outlook 2K?
I understand the MAPI version of both should be different but my
transport provider is very simple and does only basic things, so i
thought the version change would not have any special handling
required.
Appreciate any help.

Thanks and regards,
Bhushan