CODEWITHSUNDEEP
visual-studio-2010vsto
Dan Is Fiddling By Firelight
Dan Is Fiddling By Firelight

Reputation: 6061

VSTO project with multiple versions of office installed

I currently have office 2010 installed, and am trying to assist a coworker who's still using 2007 with VSTO solution. This is turning into a mess since my copy of visual studio thrashes the project files updating them to point to the O2010 dlls. If I were to install office 2007 beside 2010 would I be able to open the solution without the upgrade wizard mangling everything, or are my only options making significant architectural changes to the solution or reverting to O2007 until my employer makes O2010 the new standard.

Upvotes: 5

Views: 2872

Answers (3)

Keith
Keith

Reputation: 21264

Try disabling this option:

Options > Office Tools > Project Upgrade > Always upgrade to installed version of Office (more info here)

I don't think this solves the root problem which is that you shouldn't even be prompted to upgrade your project. I still suspect that there is something wrong with the installation of your VSTO-related components (see my other answer for that info). However this may be an easy workaround.

To be clear, you can develop Office 2007 add-ins without having Office 2007 installed. I'm doing so right now without having to follow this workaround.

Upvotes: 1

Keith
Keith

Reputation: 21264

You shouldn't need to install Office 2007 to create Office 2007 add-ins. I think the problem here is that you're missing the proper VSTO components.

Make sure you've installed the following:

If any of these are already installed then I recommend repairing their installations.

Upvotes: 2

SliverNinja - MSFT
SliverNinja - MSFT

Reputation: 31651

You cannot run Outlook versions side-by-side (and here).

You can still target both 2007 and 2010, but you need to research embedded interop types.

Upvotes: 2

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