I think Visual Basic 6.0 will continue to work for a long time. For a start, .NET has failed as a development platform for commercially mass distributed applications. nobody seems to use it in the way Visual Basic 6.0/C++ were/are used. The .NET runtimes are STILL not reliably there (from experience, we pulled a .NET application and recoded it in C++ for this one reason)
I agree about employability, though.
Loosing Visual Basic 6.0 was a major mistake by Microsoft: they were hypnotised by the whole OO thing. Most people want rapid development, not pedantic arguments about beautiful code.
VBA has replaced Visual Basic 6.0 within offices: who thinks of manipulating Office via the .NET route?
