Windows 7 key checking has always been slow...it's just the size of the configuration file that's extremely large - the only way to speed it up would be a more efficient XML search algorithm (rather than node iteration) - BTW the wait cursor should appear during the "Retrieving key..." process.
Originally Posted by RobertJ
BTW: A new pre-release to fix some of the issues reported.
Bug fix: Version check returning null error
Exception wording added for valid keys with invalid configuration resulting in a null response for edition.