SP 2010 and Office 365 C2R owssupp.dll or interceptor.dll issues

Hello,

At my company we're having compatibility issues after upgrading ourWindows 7 SP1 64-bit NL-NL laptops to Internet Explorer 11 and Office 365 ProPlus Click-to-Run32-bit NL-NL.

Our initial notebook configuration had Internet Explorer 9, Office 2007 ProPlus and Lync Basic 2013 installed.

The upgrade path exists of deleting Office 2007 and Lync Basic 2013, installing the Office 365 Click-to-Run and letting Internet Explorer update via the Windows Updates

The issues we experience happen between ourSharePoint 2010 On Premise and the SharePoint Online environment.

While we had no issues before, now, when trying to edit a document on SharePoint 2010 On Premise we get the message: "A Microsoft SharePoint Foundation compatible application could not be found to edit the document"

Doing some digging around online a lot of topics point to the ‘owssupp.dll’ as a possible culprit but to no avail we tried a number of suggested solutions, listed below. Some of these solutions might propably work for the Office 2013 MSI installation but none of them seem to apply to the Click-to-Run version.

- Repair Office (Fast and Online)

- Delete and reinstall Office

- Switch in IE between 32 and 64 bit mode but this isnot possible with Internet Explorer 11

- Tried the Microsoft Hotfix KB2726997 but got the message that itdoes not apply to our system.

- Check registry references if owssupp.dll points to Office 15

- Manually re-register owssupp.dll

- Replaced owssupp.dll by the Office 2007 version

- Checked if all SharePoint add-ons in Internet Explorer were enabled         

-> 'Sharepoint OpenDocuments Class' refers to interceptor.dllnot owssupp.dll

- Check/Install “Microsoft Sharepoint Foundation Support”.. Click-to-Run doesn’t have that option

- Create registry keys in:  HKEY_CLASSES_ROOT\Installer\Components\55EAFA0B8A4403B428FDE038B252C621

What there should be: HKCR\Installer\Components\55EAFA0B8A4403B428FDE038B252C621\x86\1033What should be added: HKCR\Installer\Components\55EAFA0B8A4403B428FDE038B252C621\x86\1043 

But the 55EAFA0B8A4403B428FDE038B252C621-key doesn't exist with the Click-to-Run version and manually creating it doesn’t help

- Put the site in the 'Intranet Zone'

- Put the site in the 'Trusted Sites' list (prodsharepoint.kindengezin.be)         -> HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMapKey                    -> *.kindengezin.be (REG_SZ, Data: 1)

- Check if our SharePoint 2010 On Premis environment is completely up-to-date

- CreateC:\Program Files (x86)\Microsoft Office\Office 15\ and placed the owsupp.dll in it; in case SharePoint would be looking for it in the wrong place;        -> Keep in mind that the folder structure with Office 365 ProPlus Click-to-Run is different than the 'normal' Office 2013 as the owssupp.dll is now located in C:\Program Files\Microsoft Office 15\root\office15\owssupp.dll

- Checked if our Firewall settings are up to date (IP-ranges and other settings)

The test where I got it towork, but is not a solution in my personal opinion is: Open the Lync Basic 2013 setup and only checkSupport for Microsoft SharePoint Foundation

In your Programs and Features list you now have 2 entries: Microsoft Lync Basic 2013 Microsoft Office 365 ProPlus – nl-nl

I do not trust this “solution” as I do not know the future consequences of this “solution” in terms of updates or functionality.