: Ensure you aren't confusing the letter O with the number 0 , or the letter I with the number 1 , which are common causes for "Invalid Activation" messages. Pricing & Licenses
To activate , the current latest version for Mac, you need a unique 25-digit alphanumeric activation code provided upon purchase. Genuine codes are linked to your email address and typically allow activation on up to 5 devices. Activation Methods airserver 7.2.7 activation code