Office 2007 installation rolling back due to protected files


“Today I came across an error whilst trying to install Microsoft Office 2007 on an XP machine with service pack 3. The error occured part way through the installation process and caused the installer to roll back and give the following message.

Microsoft Office 2007 encountered an error during setup. The Windows Installer service cannot update one or more protected Windows files.

Well that’s not very useful is it!  I did a bit of searching as you do when you have a problem and came across the solution. The problem, at least for me, was that the unnamed file was missing from my system. The file is fp4autl.dll and the steps I took to solve the problem were…

  1. From the i386 directory on the install disc find and open the file  FP40EXT.CAB
  2. Find the fp4autl.dll file
  3. Copy the file to C:\program files\common files\microsoft shared\web server extensions\40\bin\
  4. Restart the Office 2007 installation

That worked a charm and now I can use Office again.”

Thanks to the blog above, my problem is solved.



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