Suddenly PDF files write: %1 er ikke et gyldigt win 32 program. What shall I do

Hi ib%201991,

Are you receiving that error when you try to create PDF files? Or when you open or try to install Acrobat? If you're getting that error when you try to open Acrobat, it could be that one of the application files is damaged, and you'll need to reinstall Acrobat.

Best,

Sara