Have you ever experienced that your Microsoft Word 2013 Professional Plus documents in the SharePoint 2010 libraries are not opening in edit mode i.e. you can use Word Online to edit them but when you click Open in Word, it gives error that you are missing SharePoint Compatible application or SharePoint support tool or your Office version is not supported.
I faced the same issue and resolved it finally.
I had Win 7 – 64 bit with Microsoft Office 2013 – 32 bit installed and I was receiving the errors with this configuration but then I installed Microsoft Office 2010 – 32 bit and then tried to open word documents..and it worked, so in my machine Microsoft Office 2010 32 bit works fine with SharePoint 2010 – 64 bit application – strange but true.
If any of you guys experienced this, and resolved it, I would be glad if you can share your solutions and thoughts on it.