How Can I Retrieve a Process's Open File Handles and Filenames in C#?

Accessing a Process's Open Files in C#

Obtaining a list of open file handles and their corresponding filenames for a given process in C# is a difficult programming challenge. Direct access requires interoperability techniques, and readily available code examples are rare due to the inherent complexities involved.

One example, found on CodeProject, demonstrates a partial solution. While interop allows access to many aspects of this information, retrieving the actual filenames presents a significant obstacle. Filenames are stored within the kernel's memory space.

Tools like Process Explorer address this by using an embedded driver. Replicating this approach in C# while maintaining compatibility across 32-bit and 64-bit systems adds considerable development difficulty.

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