How Can I Get the File Path of a Running Process in C#?

How to get the file path of a running process in C#

When using a C# application to modify the settings of an external application, you may need to restart the external application to apply the changes. However, this poses challenges due to the lack of information about the location of the exe file, which requires finding the process path after terminating the process.

Solution: Get the file path of the running process

To solve this problem, the following code snippet demonstrates how to retrieve the full path of the currently running process:

using System.Diagnostics;
var process = Process.GetCurrentProcess(); // 或者使用适当的方法获取所需的进程
string fullPath = process.MainModule.FileName;
// fullPath 现在包含exe文件的路径。

Important Tips:

If the code is executed in a 32-bit application, it will not be able to access the path of the 64-bit application. To resolve this issue, ensure that both the application and code compile and run as 64-bit (in Visual Studio, this can be set under Project Properties → Build → Platform Target → x64).

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