The days of VAX/VMS are well over. There are a few old soldiers out there but it’s few and in between.
Myself, I’m into Visual Studio .NET 2010 Ultimate, which can do GUI automation, and I can code it in C#.
I make sure serious stuff doesn’t blow up now. Nuclear power, gas and oil refining, chemical processing, even certain foods (think liquid).
Very big and long established companies still run old - and working - code on “big iron”. They’re not going to replace systems that big (running billions of dollars annually) just to be “modern”.