Richard Ay，

Questions and answers:
1) Is this happening with only one job? If so,can you please open an SR and send in the job.

No,this happen with every job,including new job,Examples job and CII 2011job.

2) When did this problem start happening?

My computer is a new computer,and the first time CII 2017 was intalled last month on this computer, this problem happen. then i reintalled the OS(the reinstalled OS is still WIN 7 enterprise 64bit)and reinstalled CII 2017, the prepip.exe still don't work now.

3) Did anything change on your machine just before this problem manifested itself?

No change on my machine just before this problem.
If i choose WINDOWS BASIC VIDEO setting, the pipinginput window will show 1 or 2 seconds before the error occor. if i choose OPENGL setting, the pipinginput window will not show before the error occor .

CII 2011 work well on the same computer and i installed CII 2011 first ,and then i installed CII 2017.