Finally I have gotten past this error. Thanks for nothing Microsoft. Ok, I was trying to install Microsoft Office 2007 Professional Plus on multiple Windows 7 machines but could never get past the error messages that “Setup cannot find <some file>”. I mean it would error on multiple files some were access.en.us, ProPlus.ww\ProPlsWW.cab, Word.en-us\WordLR.cab, and many many others! Well, I finally got it to work and this is how I did it. I hope it helps you.
To start, let me tell you what I was doing. I am a Microsoft Volume License Customer so I was using a downloaded .iso file from Microsoft. I tried burning the file to CD’s and I tried copying the files from my successful CD burns to the hard drive. None of that worked. I disabled UAC, anti virus, and even talked really sweet to the computers. It didn’t work.
What did work is this exact sequence.
- Download and install 7-Zip if you don’t already have it.
- Right click the .iso file you downloaded from Microsoft and select 7-Zip and “Extract to ::Filename::” My Filename was SW_CD_and a ton of other characters.
- After you extract the .iso file, copy this file to a USB. I did the download and extract on a 2nd windows 7 machine but I bet you could actually run setup.exe from the extracted folder if you downloaded the .iso on the same pc you are installing Office 2007.
- Plug the USB into the windows 7 computer you are installing Office 2007 on and run setup.exe from the USB drive.
- Enter your product key
- I chose the option, custom install and chose run all from my computer.
- Install and finish
I have spent several hours trying to make this work on a clean Windows 7 install from multiple downloads of the same file from Microsoft’s volume licensing site. This is the only thing that worked. 
