Hi, Thank you for your reply. I use Lotus 123 Release 4 because it suits my needs and over the years I have accumulated a lot of custom macros which would be a large task to rewrite and debug. I guess I was unclear in my initial post and I apologize for that. I was trying to find out if I have any options for making Lotus 123 Release 4 work. For example, the fixme error messages - can I eliminate them by using MS native dll's and if so, how do I determine which ones to use? Thanks. Don