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MILERR_ALREADY_INITIALIZED
MILERR_ALREADY_INITIALIZED is a Windows Media Integration Layer (MIL) HRESULT. It indicates that initialization was requested for an object that already completed or entered its initialized lifecycle state.
What to check for MILERR_ALREADY_INITIALIZED
- Initialize the object once and update its state through the documented post-initialization methods.
- Check duplicate startup callbacks, retry paths, and constructors that can initialize the same object twice.
- Create a fresh object when reinitialization is required after a device or display reset.
Microsoft documentation about WPF hardware-accelerated rendering
Diagnostic interpretation of MILERR_ALREADY_INITIALIZED
MILERR_ALREADY_INITIALIZED has the HRESULT value 0x8898008F. AllStat records the condition as “The object has already been initialized.”. For MILERR_ALREADY_INITIALIZED, in practice, interpret that wording at the boundary owned by the Windows component or COM interface that returned the HRESULT, rather than treating the value as a generic Windows message.
Evidence to capture for MILERR_ALREADY_INITIALIZED
- Record the exact COM method or Windows API, its input object, the calling thread, and the full 0x8898008F value before a wrapper converts it to an exception or Boolean result.
- Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions MILERR_ALREADY_INITIALIZED or the milerr / already / initialized operation.
- Preserve the first failure in the call chain; a later HRESULT can describe cleanup rather than the original milerr / already / initialized condition.
Retry and recovery for MILERR_ALREADY_INITIALIZED
Retry MILERR_ALREADY_INITIALIZED only when the owning API documents a transient state or after the condition described as “The object has already been initialized.” has changed. For MILERR_ALREADY_INITIALIZED, configuration, policy, format, and authorization failures normally require correction first; an immediate loop can hide the original call site and add secondary errors.
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