License keys are version-specific; a key for WinISO 7 will not work for WinISO 6 and vice-versa. Key Features (v7.1.1)
: Supports converting between multiple image formats, including ISO, CUE/BIN, NRG, and MDF/MDS. Efficient Updating winiso 71 1 license key new
These alternatives can be a good starting point, especially if you're looking for free solutions. License keys are version-specific; a key for WinISO
You can use the software without a key, but with specific restrictions: File Size Limit : The trial version cannot save ISO image files larger than Registration License keys are version-specific