Hi All, OK, so here's the problem. I've installed Office 2010 64-bit, but since I have one important add-in not compatible with Word 2010 64-bit, I've installed my old Word 2007--it was installed fine, but... Both Word 2010 and 2007 are installed in different folders, and I can run them. Both are listed separately in Control Panel / Programs. The problem is that Windows 7 sees them actually just as "Microsoft Office Word", without differentiation. If I select either 2010 or 2007 version through "Browse" button above, it will still be seen as "Microsoft Office Word", and it would refer to the latest Word installed or repaired, unless I run 2007 version. From then on, they will refer to 2007. So, if I repair Word 2010 (in Control Panel / Programs / Change), all documents will be associated with Word 2010, unless I run 2007. Then it goes back to 2007 version, and even if I open Word 2010, all files will be open in 2007. Even if I change a default program as described above, they will be open in 2007. I'd like to have 2010 as default. How can I do this? Or, alternative, to have *.doc files associated with 2007, and *.docx files with 2010. I've been trying to set the above extensions in Control Panel / Programs / Default Programs / Set Associations (below picture), but the same story with the above-mentioned "Browse"--it will always refer to Word 2007.