>HKEY_CLASSES_ROOT\Excel.Application if it's there, it;s there and you can launch an Excel sheet via ShellExecute() or something like Shell.Application's Open method.

Thanks! The wizard takes care of launching itself and does check for Excel & MSQuery once it gets going, but I dont like how much stuff gets instantiated before it preforms it's own check for Office components... I'd rather check myself before ever making the call to wizpivot.app