is asp.net platform independent?if yes which versions ???

we run asp.net web page system must contain IIS 5.0 & Visual Studio.net are required.but IIS supports only windows Operating Systems. So,after first compilation of asp.net source code i.e MSIL code(i.e .dll) we can't run the other operating systems.


using 3rd party tools such as mono you force asp.net pages to work on Linux .. but officially its not supported .. till Microsoft doesn't releases .NET Framework for other OS .. .NET will be platform dependent ..