When you try to install a customized update using the Adobe Application Manager Enterprise Edition with Sassafras Software's K2 solution, an "Installation failed" error occurs. If you are performing the deployment via a silent install, the update fails and reports "Exit code - 27 (Keyed files detected in target)."
Replace the AdobePatchInstaller.exe (Windows) or AdobePatchInstaller.app (Mac OS) with the new version, 220.127.116.11, available as a download from this article. Then, perform the patch customization. The path varies depending on what you install, but they are in the same folder as the payloads folder. For example:
Windows: D:\Adobe CS5 Design Premium\Adobe CS5 Design Premium\AdobePatchInstaller.exe
Mac OS: /Volumes/Adobe CS5 Design Premium/Adobe CS5 Design Premium/AdobePatchInstaller.app