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Is it possible to have multiple versions of office installed on the same machine without use of a VM? i.e. Office 2003 and Office 2007?

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up vote 4 down vote accepted

Information about using 2007 Office suites and programs on a computer that is running another version of Office

You can install and use more than one version of Microsoft Office on a single computer. For example, you can install and use both Microsoft 2007 Office suites and programs and Microsoft Office 2003 on the same computer. However, we do not recommend this.

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I've seen people run into problems with Outlook - the rest of the suite worked okay, but Outlook flipped out and refused to co-operate. (It wasn't my machine, so I'm a little fuzzy on the precise scenario.) – Margaret Jul 23 '09 at 14:06
The distilled answer from that article is the "Repair Office" menu item. – Richard Morgan Jul 23 '09 at 17:27
All programs except Outlook work OK. Outlook runs a driver called MAPI, of which there can only be one version on a system at a time. Also, choose which version of office you want to be default and install that version last AFTER completely installing and COMPLETELY patching the non-default version. Then don't install any further patches to the non-default version, or else your preferences will be messed up. See this question for further discussion of this: – music2myear Aug 2 '11 at 14:19
It works OK with Word on my PC, but whenever I switch versions some installation process starts (it does not require any media or so, but takes a while and is annoying) and takes some time. – Horst Walter Aug 2 '11 at 15:00

I did it for programming purposes (having the interop libraries) and it works. That said, I only installed MS WORD and MS EXCEL (and access from Office XP)

But it works.

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