Hi Mike Further my last email. I did as you wrote and Windows 7 tried to run Legacy in XP mode. The error messages disappeared but the computer still froze and hung up on shutdown. The compatibility software also finds that it is an “incompatible application” so I have uninstalled it again. Many thanks for your input..............................David

Hi David Have a look at this website which is from Legacy http://www.legacyfamilytree.com/helpDLL-OCXerrors.asp Regards Simon