I have Windows Vista Home Premium, with Creative Wave Studio 7 installed. After FFDSHOW was installed, I find that the DirectX plugins have been replaced by FFDSHOW. When FFDHSOW is called for modifying the loaded wave file, it either remoces the entire file from memory, or Wave Studio complains that this Plugin may not be usable. I am not able to revert the DirectX options to DirectX 10. Can someone advise?