We recently upgraded some of our machines from Windows XP 32-bit machines to Windows 7 64-bit machines since XP support is going away. The new machines have fresh installs of AutoCAD 2014 on them. On most of them, the .pc3 files that worked fine on the old machines are no longer working on the new ones. It asks to select something to be associated with the .pc3 file, but that hasn't worked on all of them. Is there any way to configure the .pc3 files to work on these new machines without having to create new .pc3 files? When we do that, a couple of users have been getting some conflicts as the old .pc3 file settings have already been saved within many drawing files.
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