Developer/Support bod. Have been working in IT since leaving school in 1991, working with various versions of windows from 3.0, through 3.1, 3.11WFW, NT, 2000, etc.. have switched to working from a Macbook Pro, and using Parallels for run Windows VM's.
Development: Spent my first 10 years with Windows, MS Access and VB, then moved on to Delphi for 10 years with MS SQL, also fair bit with web languages (tho wont profess expertise here), and of course more recently, dotnet/c#.
Support: During my first 10 years, helping users use windows/office, installing, building/fixing, maintaining pc's, and the network (i was in effect, the IT Dept). Since then I have been mostly development, and support.