>Hi Denis:
>
>Features like controlled dissemination of registration keys, support for the TBYB, "Try Before You Buy" business model, and so forth. Take a look at their web sites and you'll see all the features - more than I can ramble through here. If you have a need, now or foreseeable future, for these features the extra hundred or so dollars isn't a bad deal.

Do you use one of those in particular? Somebody told me some time ago (perhaps this was fixed) that there could problems with apps protected with armadillo.