@
bluedan
Are you sure you activated (registered) dedynamic.ax in Windows?
As I also use BSPlayer 0.86 Build 501 from time to time dedynamic is usually activated on my PC.
If I deactivate it, I agree that the selection of "Use dedynamic filter" in BSPlayer 809 indeed causes no error (but in fact it is not really used then I suppose). However, if dedynamic is activated, selection of "Use dedynamic filter" causes fatal errors in BSPlayer 809.