I have just installed and run this program and was surprised to see a list of software keys. Perhaps the information should not be dumped unsolicited. However the listing claims to not be transmitted to any other webserver (and yes, there are MANY other sorts of server ). There now follows a rant. If people allow information of this nature to go online, then all it demonstrates that even the most wonderful security software is only as good as the person using it. End of rant. In any case most XP licence keys are tied to a particular PC. If I scrounge a key that was used for registering an HP desktop, and use it for a Toshiba laptop, Microsoft ought to not recognise it as a genuine installation. Corporate keys are a different matter, they can be used to register any number of XP installs, and the PC does not contact the hive mind. However you would expect these bodies corporate to employ better sysadmins, who would not leak the information? On a more positive note, many users do wish to recover their software keys, for legitimate purposes, and this tool is at least as trustworthy as some of the programs on offer.