When installing Adobe Acrobat whether it be the standalone installer or part of a larger collection such as “Design Studio”, you may get an error about 2/3 of the way through the installation. The error complains about not being able to find the AdobePDF.dll file on the Windows Vista CD. This file is not on the Vista CD but is in the Adobe Acrobat installer files. You need to find the Adobe Acrobat installer files directory and locate data1.cab. Within that will be a file named AdobePDF.dll_64. Copy that to your desktop and rename it to AdobePDF.dll and point the installer to that location. The installation should then proceed normally.