Can CorelDraw be Installed on an Air Gap Computer?

Hello,

I'm considering purchase of CorelDraw to maintain a former employee's drawings and I will need to use it on an Air Gap computer (no internet access).  Is it possible to install the latest version of CorelDraw Standard on an Air Gap computer?  I tried the 15-day trial version and it didn't work (I got an error message that said:

"No internet connection detected.  Please check your connection and try again. Click Finish to quit the setup."  

I contacted Corel support and they told me:

Mr./Ms.,

Thank you for contacting Corel Customer Support Services. My name is Joshiba and I have been assigned to your ticket.

I apologize for the inconvenience caused We will help you get this issue resolved.

Please be informed that trial version is valid only for 15 days. I suggest you to purchase the full version.

Please provide the Product serial number.

Kindly find the shopping cart below

<snip>
Please do not hesitate to contact us with any further questions.

Regards,
Joshiba
Corel Customer Support Services

I think they're telling me to buy it before they can help me.

Any ideas?

Thanks,

-Rob