ERROR_DS_PARAM_ERROR - 8255 (0x203F)
One or more parameters are illegal.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_DS_PARAM_ERROR is a generic error code indicating that one or more parameters passed to a function are illegal. This error suggests that the input provided does not meet the expected criteria defined by the API.
Error Details
- Error Name: ERROR_DS_PARAM_ERROR
- Numeric Code: 8255 (0x203F)
- Short Description: One or more parameters are illegal.
This error is commonly encountered in scenarios where a function expects specific types of input, and the provided data does not conform to these expectations. The exact nature of the parameter that caused the error can vary depending on the context in which it was called.
Usage Context
ERROR_DS_PARAM_ERROR can be returned by various Windows API functions when they encounter invalid parameters. This includes but is not limited to directory services operations, file system interactions, and network-related functions. The specific function that generated this error will provide more detailed information about the nature of the illegal parameter.
Developer Interpretation
When encountering ERROR_DS_PARAM_ERROR, developers should review the input parameters passed to the function in question. Common causes include:
- Providing an incorrect data type for a parameter.
- Passing a value that is out of the expected range or domain.
- Using an object handle or identifier that does not correspond to the operation being performed.
It is important to consult the documentation specific to the API function in question to understand the exact requirements and constraints on its parameters. Developers should ensure that all input values are validated against these specifications before calling the function.
Related Errors
ERROR_INVALID_PARAMETER(0x57)ERROR_BAD_LENGTH(0x109)ERROR_INVALID_DATA(0x8D)
These errors often indicate similar issues with input parameters but may have different specific causes and implications.
FAQ
Q: What does the ERROR_DS_PARAM_ERROR mean?
A: It indicates that one or more parameters passed to a function are illegal, meaning they do not meet the expected criteria defined by the API.
Q: How can I resolve this error?
A: Review and validate the input parameters according to the documentation of the specific API function. Ensure all values conform to the required data types and ranges.
Summary
ERROR_DS_PARAM_ERROR is a generic error code indicating that one or more parameters passed to a function are illegal. Developers should consult the relevant API documentation to understand the exact requirements for each parameter and ensure input values meet these criteria.