I was going through my software library and I noticed that I have the Exchange 2007 media but not the exchange product key or the case that the media came in. This is not a critical problem at the moment as we have exchange installed and running just fine on a windows server 2003 x64 OS. But I may need the key in the future. My attempts to find the key in the registry failed as I found out that the keys are encrypted. I have also tried a number of apps to get the key out of the registry for me but none of them seem to be able to extract the key for exchange 2007.
Here is a list of programs I have tried so far:
Product key explorer
Exchange Key Finder
Magic Jelly Beans keyfinder 2.0 beta
It seems some of these apps can do exchange 2003 but none so far can find a exchange 2007 key.