Mike,

>I have a COM exposed method that is being called successfully from Visual FoxPro. I have added a business object based upon several tables in my MS SQL Server database. When I try to do anything that connects to the data I get an exception with this Message:
>
>Object reference not set to an instance of an object.

We solved this problem with you off line, but for the benefit of posterity, I'll post the answer here.

In order to instantiate business objects from a COM server, outside the context of a .NET Windows Forms or Web Forms application, you must instantiate an instance of the factory before instantiating any business objects. In this case we just used added a line of code that instantiates the AAppTest object:

AAppTest AT = new AAppTest();

The constructor of AAppTest instantiates a factory object and all is well!

Best Regards,