Today, a documentation of an old system landed to my inbox – and when I tried to open it, I received a message I had never seen before:
You are attempting to open a file that was created in an earlier version of Microsoft Office. This file type is blocked from opening in this version by your registry policy setting.
This error occurs if you try to open a Microsoft Office document and the file type for that document has been blocked by a registry policy setting. To help secure your computer, Microsoft or the administrator of this computer implemented a registry policy setting that prevents opening this type of file.
To open documents with this file type, disable the registry policy setting. For more information, see Microsoft Knowledge Base article 922850.
The fix is to insert the following registry keys:
Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\12.0\Word\Security\FileOpenBlock] "FilesBeforeVersion"=dword:00000000 "BinaryFiles"=dword:00000000 "RtfFiles"=dword:00000000
Just save it to a file with .reg exension and double-click on it. Remember to close MS Word first!