I can accept copy protection even when it requires me to register. What I do consider a pain in the a... is the rediculous period of just 14 days for Vantage, or even worse in case of VirtualRPC-SE which has to be registered *before* I can even use it but has to be *installed* for registration. Poor blokes who get such a product for X-Mas.
They ought to offer at least a temporary registration via Webinterface or the like and let me use what I paid for based on that for a reasonable time span (say 30 days) so that I don't buy and then have to sit and wait until I can use the product, or it ceases to work before registration is done. I should assume that within 30 days my registration can and will be checked and confirmed by the company issuing the product allowing for holidays, illness and such reasons for unavailability.
But even more rediculous is the need for re-registration in case I move the registered product to a new hardware due to e.g. buying a new machine or due to a replacement. If this is the case for a product which won't work without re-registration, or just for a few days chances are close to zero for me to buy such a piece of software. Murphy will make sure that your hardware will break down during a time when re-registration is impossible due to holiday, vacation, illness, company having disappeared, but you need the software just then. Then I rather make sure I don't need it to start with!
Aemulor shows how online registration can be done and thus I was happy to go for it.
Furthermore the above artifact does show that SPAM filtering is something which has to be set up sensibly (i.e. reading the docs and really acting accordingly) to avoid deleting wanted mail. Just 1MB mail is not that much so that it should not have been deleted but downloaded and the SPAM put into some folder for inspection.