ERROR_RMODE_APP - 1153 (0x481)
The specified program was written for an earlier version of Windows.
Updated: Feb 21, 2026
Technical Meaning
The error code ERROR_RMODE_APP with the numeric value 1153 and hexadecimal representation 0x481 indicates that a program attempted to run in an environment where it is not compatible due to being written for an earlier version of Windows.
Error Details
This error typically occurs when a software application or driver is executed on a system with a different major version of the operating system. The application may have been developed under assumptions about the API behavior, file formats, or other aspects that are not present in the current version of Windows.
Usage Context
The context in which this error might be encountered includes:
- Running legacy applications on newer versions of Windows.
- Executing drivers or system components that were designed for an older operating system.
- Attempting to load or execute files created by a different major version of the OS.
Developer Interpretation
Developers should ensure their applications and drivers are compatible with the target operating system. This involves:
- Checking API versions and ensuring compatibility.
- Validating file formats and structures used in the application.
- Testing on multiple versions of Windows to identify potential compatibility issues.
Related Errors
ERROR_BAD_EXE_FORMAT(998, 0x3E6): Indicates an executable format that is not recognized by the system.ERROR_INVALID_DATA(13, 0x13): General error indicating invalid data in a file or structure.ERROR_FILE_NOT_FOUND(2, 0x2): The specified file could not be found, which might indicate compatibility issues with older files.
FAQ
Q: Can this error occur on any version of Windows?
A: Yes, it can occur when running applications or drivers that are not compatible with the current operating system version.
Q: How can I prevent this error from occurring?
A: Ensure that all software and drivers are up to date and compatible with your version of Windows. Perform thorough testing on different versions of the OS before deployment.
Summary
The ERROR_RMODE_APP error code signifies a compatibility issue between an application or driver and the current operating system. Developers should focus on ensuring their applications are compatible across different versions of Windows to avoid such issues.