>>Thanks a lot, this is very helpful. I'll try to write some tests tomorrow for our business classes and our forms, which are classes as well.
>
>You're welcome.
>
>Thanks for mentioning Martin's article in UT Magazine (http://www.utmag.com/wconnect/wc.dll?9,7,10,826). It looks really good.
>
>Chris

Ok, I've managed to run successfully two tests for checking if objects can be instantiated. These two particular classes are not that complex, I would add some forms classes now.