DOSBox: Error when run Rayman Forever

Hi guys,

I hope you are all well.

Pls, when I try to open or install “Rayman Forever 1998” (v. Exodos) via DOSBox, I get the following error message: “CD ROMs Initialization. Please install MSCDEX v2.1 or above”. And if I try to install the game (bin + cue), another error message appears: “MSCDEX: Failure: Invalid file or unable to open”. Pls see the pic:

Many thanks in advance.