WSAESOCKTNOSUPPORT - 10044 (0x273C)
The support for the specified socket type does not exist in this address family.
Updated: Feb 21, 2026
Technical Background
The WSAEsocktnosupport error code, with the numeric value 10044 (0x273C), is returned by Windows Sockets API functions when an attempt is made to use a socket type that is not supported within the specified address family. This error typically occurs during network programming and socket operations.
Error Details
The WSAEsocktnosupport error indicates that the requested socket type is incompatible with the current address family. For example, attempting to create a stream socket in an address family that only supports datagram sockets would result in this error. This error code helps developers understand and handle unsupported operations correctly.
Common Causes
- Invalid Socket Type: Using a socket type that is not compatible with the specified address family.
- Incorrect Address Family: Specifying an address family that does not support the intended socket type.
Real-World Context
This error can occur in various network programming scenarios, such as when attempting to create or manipulate sockets for specific types of communication. Developers must ensure that they are using compatible socket types and address families to avoid this error.
Is This Error Critical?
The WSAEsocktnosupport error is not critical but should be handled appropriately in the application logic to prevent program crashes or unexpected behavior. It indicates a mismatch between the requested operation and the capabilities of the underlying network stack.
How to Diagnose
To diagnose this issue, developers can follow these steps:
- Review Operation Context: Ensure that the address family and socket type are correctly specified for the intended communication protocol.
- Validate Parameters: Check if all parameters passed to the API function are valid and compatible with each other.
- Confirm Object Types: Verify that the object types used in the operation are appropriate for the network stack being utilized.
- Verify Input Data: Ensure that input data is correctly formatted and does not contain any invalid values that could cause this error.
- Check Limits or Constraints: Confirm that no system limits have been exceeded, such as maximum number of open sockets.
How to Resolve
To resolve the WSAEsocktnosupport error, developers should:
- Correctly specify the address family and socket type according to the requirements of the network protocol being used.
- Adjust the operation context if necessary, ensuring that it aligns with the capabilities of the underlying network stack.
- Restore any corrupted data or parameters that may have caused this error.
- Retry the operation using valid inputs and appropriate settings.
Developer Notes
Developers should be aware that the WSAEsocktnosupport error is specific to the combination of address family and socket type. Ensuring compatibility between these elements is crucial for successful network programming in Windows environments.
Related Errors
- WSAENOSUPPORT: Indicates that a requested operation is not supported by the underlying system or protocol.
- WSAEAFNOSUPPORT: Occurs when an address family specified in a function call is not supported on this platform.
FAQ
Q: What does WSAESOCKTNOSUPPORT mean?
A: WSAEsocktnosupport indicates that the requested socket type is not compatible with the specified address family. This error occurs when attempting to use an unsupported combination of socket types and address families in network programming.
Q: How can I handle this error in my application?
A: Handle the WSAEsocktnosupport error by validating your parameters, ensuring that you are using compatible socket types and address families. Adjust your code as necessary to avoid this error.
Summary
The WSAEsocktnosupport error is a specific indication of an unsupported combination of socket type and address family in network programming. By understanding the context and causes of this error, developers can ensure that their applications handle network operations correctly and efficiently.