Hello Jerry,
Usually the error message ***"DxDiag has detected that there might have been a problem accessing DirectShow the last time this program was used. Would you like to bypass DirectShow this time"***cause is DirectX incorrectly installed on your computer. Due to this you're having a problem accessing DirectShow on your computer. We recommend installing the latest version of DirectX by following the solution on this link.
Once you're done, let us know the result.