Since ProShow Gold is outdated and lacks support for modern video formats/codecs, consider these alternatives: Proshow Producer 9.0.3771 Registration Key - Google Groups

can sometimes scan your system and reveal the serial numbers of installed software. Google Groups Recommended Free & Modern Alternatives

Even with a valid key, users often report that the software reverts to an "evaluation" or trial mode because it cannot contact the defunct activation servers Official Successor: Photodex officially recommended as the replacement for ProShow Gold and Producer. Google Groups How to Recover a Lost Key