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The 1,000,000 Dollar Question about Fixing MAPI

Posted on 2011-02-24
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Last Modified: 2013-11-12
Hello,

I do email migrations from one system to another, and often people want to go to Microsoft Outlook. That works most of the time. Sometimes, people cannot migrate into Outlook because GroupWise was installed on this same machine, and GroupWise uses its own version of MAPI. Sometimes, a reinstall of Outlook prevents MAPI conflicts, but other times it does not. If I completely uninstlal the GroupWise client from a machine and leave Outlook, I could still have connection problems to Outlook because GroupWise left its mapi files behind. Sometimes, if I then uninstall Outlook and reinstall it then I have no connection problems. But, this is not true all of the time.

I need to learn more about MAPI. If there are problems with MAPI because of incompatible versions e.g. GroupWise and Outlook on the same machine, what is the best way to make sure MAPI is the correct one for Outlook?

Also, it seems that sometimes that Windows will keep its own version of MAPI and fight with GroupWise or even Outlook if the version has changed.

What are the files related to MAPI? If I need to fix it (without running fix mapi) what can I do to ensure the MAPI version is the compatible version for Outlook without having to reinstall Outlook or run Outlook repair, which does not always work?

Good luck with this one LOL.

Thanks,
John
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Question by:jhieb
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PsiCop earned 500 total points
ID: 34977099
You didn't bother to specify the versions of GroupWise, LookOut! or Winblows, so giving you specific advice is difficult.

GroupWise has it's own MAPI install because M$ killed MAPI after W2K. So Novell licensed MAPI and rolled it into the GroupWise install.

I would get a spare system and experiment with E-mail client load order. Perhaps things will work if you install GroupWise first and then LookOut! Perhaps the reverse.

Alternatively, for those who just can't live without an E-mail client that any 15-year-old script kiddie can hack using 2 lines of HTML, you might try offering them the GroupWise LookOut! plug-in.
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by:jhieb
ID: 34980074
Hi PSiCop,

It is good to hear from you. We've had the GroupWise and Outlook discussion before, and it is a delight to see your view of Lookout hasn't changed lol. I have multiple vmware images for testing, and this is one of the reasons for my question. Aside from the loading order of these email clients, I would like to know what happens in the backend with MAPI. If I had an easy tracer program then that would help. What I am still unclear about is what files, in addition to MAPI32.DLL, are related to MAPI. If I needed to manually fix MAPI or find a way to bounce between MAPI versions, how would I do that?

Thanks. By the way, what to you think about the Novell Acquisition? I am curious about the future of GroupWise and what it will evolve into.

John
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by:PsiCop
PsiCop earned 500 total points
ID: 34985118
Which file are related to MAPI. Excellent question for which I don't have an answer.

Do you have ZENworks? Perhaps you could use the snAppShot feature to get the diffs between a workstation before and after the install of the packages. That would let you narrow down the files you need to look at.

If you get the list of file adds/changes for a GroupWise install with MAPI, and then do the same thing for LookOut!, the file names that are the same on both lists are probably MAPI-related. It's likely there will also be some other stuff, but I suspect you'll get a fairly short list of candidate files when you take the intersection of both lists.

Once you have that short list, you can investigate the individual files more closely.
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by:PsiCop
PsiCop earned 500 total points
ID: 34985143
John,

What I think about the acquisition would probably get me kicked off of EE if I put it here. :-/

I have the same curiosity you do. When I read about the pre-Novell resumes of the executives who got hired on after the SilverStream, Cambridge, Ximian and SUSE acquisitions, I had deep misgivings. Their "patent peace" with M$ was a horrible move, although now I have trouble deciding if it was just a bad mistake or an early part of an overall plan.

I really don't know what's going to happen to Novell's product line. I'm sad to see what has happened to the company. GroupWise remains a great product, as do ZENworks, eDirectory and Identity Manager. But I don't know what's going to happen.
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Author Closing Comment

by:jhieb
ID: 35010309
There was no definite answer for my question. This really is a difficult question, and I think it is problematic for many. PSICOP's suggestion on using on comparing snapshots is probably the best thing to do if there are no other choices.
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