Issue with Dashware program following Anniversary update

I use a program called Dashware to overlay telemetry data from my racecar onto video taken with a GoPro to provide driver coaching to identify how I can go faster. The Dashware software is now owned by GoPro, but is no longer developed.

Dashware runs fine under version 1511, but after update to 1607 it will no longer load and play videos in any file format I have tried (MP4, MPG, WMV). It starts to open the video file, but then hangs before I will play it.

I have tried this on three separate PC's with the same results, and other users are also reporting the issue, so I do not think it is specific to my PC configuration.

The Dashware program requires .NET Framework 4.0 to run and uses FFMPEG for video encoding

I have now reverted one laptop back to 1511 and Dashware runs fine again.

Can anyone think of any changes within Build 1607 that could be causing the problems.
Secondly are there any tips on how to stop Windows Update automatically running the update back to 1607 again?

The videos play OK in Media Player and also the Video App. Unfortunately the Dashware program is no longer maintained since it was sold to GoPro, so there is not much chance of getting it fixed.

I have just found KB3073930 wushowhide.cab and am running that to disable the Anniversary Update running. I have also ticked the defer updates box in Windows Update which will also hopefully stop the update (I'm running Win 10 Pro). At least if this works I can keep my old laptop just to do this one task.