Multiple protected Windows file errors

In general, there is no problem installing the software, especially the common software that installs Office. But in special cases it still goes wrong, and this day when I installed Office 2010, the following error occurred: The Windows Installer service could not update one or more protected Windows files.

There is no need to worry about this error, it is easy to solve: only need to copy Fp4autl.dll, Fpencode.dll, Fp4awel.dll three files to "C:Program FilesCommon FilesMicrosoft Sharedweb server Extensions40bin "(typically this directory, if you change the information on the registry%system%) This directory is OK.

Where do these three files come from?

One is downloading from the Internet,

Second, from the installation CD-ROM, the Windows installation CD in the I386 directory of the Fp40ext.cab file open (using WinRAR or good pressure), to find the above three files on it.

Note: If for the sake of convenience, can directly extract the above files to the bin directory above, can also solve the problem.