>>No. It's set by the user under Windows display settings.
>>
>>>Can the text size in the messagebox() function be enlarged?
>
>Then I guess I'd have to create a form to mimic it?

Isn't it frustrating that Microsoft has standarized it's whole user interface to 8 point fonts? Whoever I ask feels more comfortable with 9 or 10 points fonts. I don't know who they asked on their usability tests.