DOS
Windows 95
Windows NT
Windows 98
Windows Me(yes i used few years ago
)
Windows 2000
Windows XP Home
Windows XP Professional
Windows Vista Ultimate 64bit
Windows Vista home ed. 64bit(currectly using)
mandrake linux
suse linux
redhat lunux
Mac OSX 10.4.1(currently using)
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Current development tools:
Visual C++.net, Visual C#.net
Visual VB.net, Visual Webdeveloper.net
Bloodshed Dev C++, Borland C++
Visual Basic 6