I am studying the possibility of migrating a Exchange server towards a Zimbra server. The installation occurred very well, but when I try to import the accounts since Exchange (2003), the assistant of migration makes go up 1 warning by element of calendar to be imported (the importation of the emails and the address books occurs on the other hand well), then crash without message at the time of the last screen. The log lets appear those errors :

04-04-2007 12:35:27 [5972]: (MI): Adding Appoinment d(Mon, 2 Apr 2007 15:27:54 -0000) fid(010)
04-04-2007 12:35:28 [5972]: Exception Address: 0x44237a
04-04-2007 12:35:36 [5972]: CORE: Generated core dump: C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\1\ZCSMigWiz-4.5.3_GA_731\ZimbraCore_04042007_123528.dmp
04-04-2007 12:35:36 [5972]: Unable to process message d(Mon, 2 Apr 2007 15:27:54 -0000) Folder Name - Calendar
04-04-2007 12:35:36 [5972]: (MI): The MAPI message was logged to C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\1\ZCSMigWiz-4.5.3_GA_731\000000007f3c7ec9f5449541836d572db480c e140

I find indeed files “msg” containing information of calendar in the repertory of the log, one by element of calendar, accompanied by a file “dump” from 45 to 50 Mo by element (ZimbraCore_04042007_123528.dmp for example)
I specify that I checked the problems of CDOEX, the rights of access to the base,…, all that one finds in this wiki page speaking about an appreciably equivalent problem, exception and CORE DUMP in less: http://wiki.zimbra.com/index.php?tit...shooting#CDOEX
I also announce that the problem arises on 2 environments different servers, since I met it on a Windows 2000 server, and that there always exists in spite of a migration towards Windows 2003 server, and with exactly the same address of exception (tried if the COEX would not have been compatible, never knows one with cro$oft )

Here is, if somebody could guide me, that would arrange me, and prevent that we cancel the migration towards Zimbra (the calendars are fundamental)

Thank you in advance