>>Joe,
>>
>>>I need to display some data on the MainWindow which is an mmBaseWindow. I cannot call RegisterPrimaryBizObj. So I create the bizobj and set it into the datacontext and it works ok. Is there any reason or way to use RegisterPrimaryBizObj on the MainWindow?
>>
>>By main window are you referring to the MDI Main Form? The benefits of registering a business object with a form are so you can use the form level methods such as Save() . These methods allow UI action to be taken like confiming a user wants to delete, etc. There is nothing wrong with using the business object the way you state.
>>Tim
>
>Yes the MDI Main Form. I don't need to save, only display. But anyway... how would I register the bo when RegisterPrimaryBizObj is only available on a mmBusinessWindow?

Doesn't sound like you need to. What you did sounds fine for that and if it works you should be good. Are you experiencing a problem?
Tim