IsNothing(obj) vs. obj is nothing

So, I discovered recently VB.NET that IsNothing() is a function, and that, according to the help...

Quote:

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IsNothing returns True if the expression represents an Object variable that currently has no object assigned to it; otherwise, it returns False.

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Is there a difference between using the 'IsNothing(obj)' function and using the 'obj is Nothing' syntax? Does VB.NET prefer one over the other?

Thanks

IsNothing is imported from VisualBasic namespace . It means it's for compatibilty issues .blah Is Nothing is the .NET way . Function , both gives same result .

OK, as long as both work. I'm confiused though since the IsNothing() function didn't exist in vb 6. The 'obj is Nothing' syntax is used instead.

Thanks :)