Running Java, Python, Ruby and Perl programs in .NET
Do you want to run programs in these languages inside the .NET platform? You'd need IronPython or IronRuby (I don't think anything like IronPerl exists).
If you want to run "normal" Python/Ruby/Perl/Java programs, then yes, you'll need to install a Python interpreter, a Ruby interpreter, a Perl interpreter and a Java VM.
I've .NET framework 3.5 installed in my laptop. Just .NET alone, no Visual Studio. How can I run Java, Python, Ruby and Perl programs from the console? 
Do I need to install something else also, for running these language files?
In case there is a need for something extra to be installed and after i have all of them, what are the commands that I need to type in the console to run these programs?