What is Managed Code

Managed Code in the Microsoft .Net Framework refers to code that is executed within the environment of the Common Language Runtime (CLR). In contrast, Unmanaged Code is directly executed by the computer's CPU without the involvement of the CLR. Managed and Unmanaged Code differ in terms of data types, error-handling mechanisms, creation and destruction rules, and design guidelines.

Higher level of abstraction

One of the key benefits of using Managed Code is the convenience it offers to programmers. The CLR provides a higher level of abstraction and automates certain tasks, such as memory management through features like Garbage Collection. This relieves developers from manual memory allocation and deallocation, making the code more reliable and robust. Additionally, Managed Code enforces Type Safety, which helps prevent type-related errors and enhances program stability.

Enhanced security

Another advantage of Managed Code is enhanced security. When code runs within the CLR, it operates in a sandboxed environment, isolated from direct access to the underlying system resources. This isolation ensures that the code cannot access or modify sensitive information outside the runtime environment. It also prevents the code from making direct calls to the Operating System, which can pose security risks if not properly controlled.

On the other hand, Unmanaged Code has the ability to bypass the .NET Framework and directly interact with the Operating System. This capability poses a significant security risk, as unmanaged code can potentially access system resources and execute malicious actions. Therefore, calling unmanaged code requires careful consideration and should be done with appropriate security measures in place.


Managed Code provides programmers with convenience and enhanced security. It offers reliability, thanks to features like Garbage Collection and Type Safety, which contribute to more stable applications. By running within the CLR, Managed Code remains isolated and cannot directly access system resources, resulting in a more secure computing environment. Conversely, Unmanaged Code has the potential to bypass the .NET Framework and pose security risks, making it important to exercise caution when working with unmanaged code.