Probably you have a Firewall / Security Program issue. You should allow Genpuid.exe there = add it to allowed programs in Options or Settings or something. The easiest way to test this is to disable all Security, and try the program - if you have an updated Windows 7, you're safe for several hours even without Antivirus and such on. BUT do remember to get them on, after the test.
If you have purchased it, you can contact the producer. They have the answers, and support. And, if this turns out to be the case, you might serve your fellow men well, by informing the producer.