see this link;

It seems Symantec considers this product to be a Security Assessment Tool and so treats it as spyware. Certainly it can extract important information from a computer that might be useful elsewhere.

If you can't get Produkey to work any more, download and run Belarc Advisor from;

It does the same job but also gives a hardware and software inventory for all of your computer. As far as I know it is not treated as malware by any anti-virus or anti-spyware software.