Why Is My C Application Throwing an \'MSVCP140.dll is Missing\' Error?

Debugging the Missing MSVCP140.dll Issue

When executing a C application, you may encounter an error that reads, "MSVCP140.dll is missing." This error indicates that a critical runtime DLL is not available or accessible to the application. To resolve this issue and ensure smooth execution, consider the following steps:

Method 1: Distributing the Runtime DLL

Your friend may not have the necessary runtime DLL installed on their computer. The best solution is to have them download and install the Visual C Redistributable for Visual Studio 2017, which includes MSVCP140.dll. This package can be obtained from the Microsoft website.

Method 2: Static Linking

Alternatively, you can compile your application with static linking. Static linking embeds the runtime into the executable itself, eliminating the dependency on external DLLs. To achieve this in Visual Studio:

1. Navigate to the Project tab -> Properties.
2. Select Configuration Properties -> C/C .
3. Under Code Generation, locate Runtime Library.
4. Set the runtime library to "/MTd" for debug mode and "/MT" for release mode.

This approach results in a larger executable size, but your friend will no longer encounter the MSVCP140.dll missing error. They can run the application without having to install any additional runtime components.

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