I've been getting very annoyed with some of the protection techniques out in general use. Many of which are poorly tested, and buggy - and interfere with legitimate users. In a number of cases, the problems caused by the protection, are not always recognisable or fixable by the support teams (see the anecdote below). Does anyone know what proportion of tech. support calls are due to malfunctioning protection software? This would be an interesting statistic.
Perhaps, things would have been better if the CD-RW drive manufacturers had made an agreement with the publishers not to support the writing of certain protection techniques - in the same way that VCR manufacturers made an agreement with Macrovision, so that macrovision encoded signals would not be recorded.
Now we have all manner of methods - most proprietary, and some stronger than others. Some more invasive than others. However, interfering with other software, stealth installation of system-level drivers and profiling the software on your machine, are unacceptable in my opinion.
I remember a few years ago, when I bought Railroad tycoon II - I bought it at full price. It would not run at all on my machine.
I made several calls to the premium rate tech support line but they were unable to help - you could try another CD-ROM drive, was their most helpful suggestion.
I tried to take the game back to the shop - "You should have checked compatability before buying, Sir." "Sorry, but software, once opened, cannot be returned for exchange or refund under any circumstances."
I was about to write-off the £35 I had paid, when I tried something I'd promised myself never to do - support a warez site and download a crack. I installed it, and the game worked perfectly thereafter. I never sent a disparaging letter to the publisher, though I had much fun writing it.