UnregisterTraceGuids function (evntrace.h)
The UnregisterTraceGuids function unregisters a Classic (Windows 2000-style) ETW event trace provider that was registered using RegisterTraceGuids.
Syntax
ULONG WMIAPI UnregisterTraceGuids(
[in] TRACEGUID_HANDLE RegistrationHandle
);
Parameters
[in] RegistrationHandle
Handle to the event trace provider, obtained from an earlier call to the RegisterTraceGuids function.
Return value
If the function succeeds, the return value is ERROR_SUCCESS.
If the function fails, the return value is one of the system error codes. The following are some common errors and their causes.
ERROR_INVALID_PARAMETER
The RegistrationHandle parameter does not specify the handle to a registered provider or is NULL.
Remarks
Providers call this function.
The event trace provider must have been registered previously by calling the RegisterTraceGuids function.
Important
All registration handles created by a DLL or driver must be unregistered before the DLL or driver unloads. If the provider is not unregistered, a crash will occur when ETW tries to invoke the provider's callback.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps | UWP apps] |
| Minimum supported server | Windows 2000 Server [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | evntrace.h |
| Library | Advapi32.lib |
| DLL | Advapi32.dll |