*.ISO file was associated in the registry to be used/open with CopyToDVD.
The fastest way to change the association is select an .ISO file.
<Right-Click> on the .ISO file while holding the <SHIFT> key.
In the menu, you should see an new option, Open With !
Go and select DVDDecrypter.exe and there will probably be a little check box saying “Always Open With”
Make sure that is selected.
Icons may not reset until you reboot…
Give it a try !
Start Windows Explorer.
Go into Tools, then Folder Options
Then in File Types
Search for ISO
Change it for DVD Decrypter.
I prefer the 1st method personnally !