“Not … Is Nothing” versus “… IsNot Nothing”

Question

Does anyone here use VB.NET and have a strong preference for or against using Not foo Is Nothing as opposed to foo IsNot Nothing? If so, why?

Answer 1

Using VB 7.0

If var1 Is Not Nothing Then

generates an "invalid use of object error" as per this "VBForums" link.

If var1 IsNot Nothing Then

generates a "Compile error: Expected: Then or GoTo"

If Not IsNothing(var1) Then

worked like a champ