Spent around 2 hours trying to figure this out on :
Windows 7 x64 + PS CS 5.1
Copy the ColorEfexPro4FC64.dll to System32 folder...
Copy the ColorEfexPro4FC32.dll & ColorEfexPro4FC32.dll to sysWOW64 folder...
Copy the ColorEfexPro4FC32.dll & ColorEfexPro4FC32.dll to c:\Program Files\Adobe\Adobe Photoshop folder
It Finally works ... till the last step i was gettin the Activation screen ...
Hope it Helps
