Hi Pryrt
Thank you for your comment. I agree with you and this is the way most features/license control is done in my application. But for a specific set of features, I need to assure (or try to the best degree I can) that the tool is only used inside the company (physically) or - because of the new normal 'home office' - or with a computer connected to a company VPN. Of course, this limitation can be overcome with only a bit of knowledge, but for my 'low-level requirements' would do the job. So anything that could read - in Perl - some info from the VPN, would work for my case.