Systems & hardware
.NET IL
.NET Intermediate Language (IL), formerly known as MSIL (Microsoft Intermediate Language) or CIL (Common Intermediate Language), is the low-level programming language used by the .NET Framework. IL is a CPU-independent set of instructions that can be executed by the .NET runtime environment. When a .NET program is compiled, it is converted into IL, which is then JIT-compiled to native code by the .NET runtime upon execution.
- Created by
- Microsoft
- First appeared
- 2000
- Official resource
- Visit the main website
Your first program
Hello, World!
.assembly HelloWorld
{
}
.method public static void Main() cil managed
{
.entrypoint
ldstr "Hello, World!"
call void [mscorlib]System.Console::WriteLine(string)
ret
}Keep learning
Where to go from here
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Official resource
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Teach me the basics of .NET IL. Use https://code.study/dotnet-il as the starting point. Explain what .NET IL is best suited for, when I should not choose it, how to install or try it, and then walk me through its Hello World example step by step.
Content reviewed August 2026 · Start with primary sources and verify version-specific details.