ERROR_SXS_FILE_NOT_PART_OF_ASSEMBLY - 14104 (0x3718)
The file is not a part of the assembly.
Updated: Feb 21, 2026
Technical Meaning
The error code ERROR_SXS_FILE_NOT_PART_OF_ASSEMBLY indicates that a file encountered during the execution of an assembly-based operation is not recognized as part of the specified assembly. This typically occurs in scenarios involving side-by-side assemblies (SXS) where the system attempts to resolve dependencies or load components from specific assemblies.
Error Details
This error suggests that there might be a mismatch between the expected file and its associated assembly, possibly due to incorrect file paths, corrupted files, or issues with the assembly manifest. The error is returned by functions such as LoadAssembly or ResolveAssemblyReference, which are part of the Windows Side-by-Side Assembly (SXS) infrastructure.
Usage Context
This error can occur in various scenarios where assemblies need to be loaded dynamically at runtime, including but not limited to:
- Application domain management
- Component-based software architectures
- Dynamic loading of plugins or extensions
Developer Interpretation
When encountering this error, developers should ensure that the file paths and assembly references are correctly specified. Additionally, verifying the integrity of the files and ensuring they are part of the intended assemblies can help resolve such issues.
Related Errors
ERROR_SXS_FILE_NOT_FOUND(14026, 0x38E2)ERROR_SXS_MANIFEST_IDENTITY_MISMATCH(14159, 0x38F7)ERROR_SXS_VERSION_CONFLICT(14160, 0x38F8)
FAQ
Q: What does the error mean?
A: The file is not recognized as part of the specified assembly.
Q: How can I resolve this issue?
A: Verify the file paths and assembly references. Ensure that the files are correctly installed and their manifests match the expected versions or identities.
Summary
The ERROR_SXS_FILE_NOT_PART_OF_ASSEMBLY error indicates a mismatch between a file and its associated assembly, which can occur in various scenarios involving dynamic loading of assemblies. Developers should ensure correct paths and references to avoid this issue.