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Rebuilding SharePoint and Exchange.

I have to rebuild a machine that already has windows 2008 and exchange 2007( trial version) and Sharepoint 2007. I've discovered Exchange 2007 proper only runs on 64 bit machines, and the server it's on is 32 bit, so i can't turn the trial and I'm screwed. There are already users in exchange and users on SharePoint and documents uploaded. I'm hoping to get some expert opinions about the smartest way to go about this.

If I back up SharePoint, could I uninstall exchange 2007 and Sharepoint and reinstall exchange 2003, and Sharepoint and then restore the SharePoint backup? I'm guessing not.

Can I migrate it somehow? I guess you get the problem
1 Solution
I don't believe it is possible to restore a 2007 database to a 2003 Exchange server, so I am not going to recommend anything that does not involve moving to a 64 bit OS.  If you want to move back to 2003, you can use the Export-Mailbox and Import-Mailbox cmdlets to export each user's mailbox as a PST, then use exmerge to re-import.

If you want to stay with Exchange 2007, there are two solutions that I propose.

1.  Use VMWare Converter, convert your current server into a VM on another machine, then migrate your AD back to a fresh install of 2008 64 bit.

2.  If you do not have VMWare, you can migrate to another temporary server, then back to the same hardware.

Either method should work, but VMWare is the fastest route.  Afterwards you can restore your Exchange and Sharepoint databases.

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