HOW do I insert my key and where?

Please find the step-by step instructions at the guidance below:
http://www.solveigmm.com/HowTo/how-to-register-hypercam

HYPERCAM 3.0

I had my key by email;
 now share.it  said to me :

 "Per domande riguardando l?installazione del prodotto o inserimento della
chiave di licenza si rivolga direttamente al sopporto tecnico del
produttore: "

I'm writing to productor at the address they sent but in the meantime are ther anybody who knows how? TY!