ERROR_NOT_TINY_STREAM - 598 (0x256)
The stream is not a tiny stream.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_NOT_TINY_STREAM error code indicates that a function or operation was called with an object that is not recognized as a tiny stream. Tiny streams are special file objects used in certain scenarios, such as when handling small amounts of data efficiently.
Error Details
This error typically occurs during file operations where the system expects a specific type of stream but encounters one that does not meet the criteria for being considered a tiny stream. The exact behavior and implications depend on the context in which this error is encountered.
Usage Context
The ERROR_NOT_TINY_STREAM error can be relevant in scenarios involving file I/O operations, particularly those that deal with small data transfers or specific file formats. It may also appear when working with certain APIs that have specific requirements for stream types.
Developer Interpretation
Developers should interpret this error as an indication that the operation was performed on a non-tiny stream object, which is not compatible with the function's expectations. This could mean that the file or data being manipulated does not meet the criteria for a tiny stream, such as having a size that exceeds the threshold defined by the system.
Related Errors
FAQ
Q: What is a tiny stream?
A: A tiny stream is a special type of file object used in Windows for handling small amounts of data efficiently. It has specific size and performance characteristics.
Q: Why does this error occur?
A: This error occurs when an operation that expects a tiny stream encounters a different type of stream, such as a regular file or directory.
Q: How can I resolve this issue?
A: Ensure that the object being operated on is indeed a tiny stream. Check the size and format of the data to ensure it meets the criteria for a tiny stream before performing operations that require one.
Summary
The ERROR_NOT_TINY_STREAM error code indicates that an operation was performed with an object not recognized as a tiny stream, which is incompatible with the function's requirements. Developers should verify the type and size of the data or file being manipulated to ensure it meets the criteria for a tiny stream.