i have problem in compiling my C# program.i have downloaded the .Net Framework SDK from the www.msdn.com/downloads/default.asp site which is of the size 131MB.now i wud like to know :
1)is the compiler of the C# program present with the .Net SDK?
2)do i need to install the Visual Studio.Net also to compile my C# program ?
3)if i write my C# program where exactly do i write it(mean in which directory/folder)
4)from where do i compile my program(though i know from the command)but from which location(directory).ie is there any particular directory from where the compilation must b done ??

someone please help me.i need it badly for my project .please !!