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NS_E_WMP_EXTERNAL_NOTREADY
The exact condition behind the dialog
NS_E_WMP_EXTERNAL_NOTREADY is HRESULT 0xC00D0FDC. At the external not ready checkpoint it means the WMP external automation object has not reached the state required by the call; the result belongs to the Windows Media Player ActiveX control and COM object lifetime, not to an unspecified Player failure.
The generated part of the What Is page already shows the standard AllStat description for this HRESULT. The additional test for the external not ready condition is to record object creation, connection/readiness event and the first method invoked; that evidence is more useful than reinstalling the Player or changing several unrelated settings at once.
How to prove the condition
- Find the first component that returned this result and label that event as the external not ready boundary.
- Freeze the input and object identity associated with external not ready before WMP fallback or cleanup changes it.
- Reconstruct the immediately preceding successful state for external not ready, then identify the call or event that crossed into failure.
- Perform the code-specific test: record object creation, connection/readiness event and the first method invoked.
- Make the narrow correction—wait for readiness or recreate the external object after failed initialization—and repeat the same producing operation for external not ready.
Minimum useful incident record
Capture the external not ready state before the Player advances, reloads, rescans or destroys the owning object:
- Decisive check: record object creation, connection/readiness event and the first method invoked.
- Artifact: shutdown order for host window, control, playback engine and plug-ins for the external not ready reproduction.
- State: host process and control version, uiMode and remote/local service type for the external not ready reproduction.
Why the producing component matters
A narrow remediation path
Neighboring codes to separate
| Result | Different boundary |
|---|---|
NS_E_WMPOCX_PLAYER_NOT_DOCKED | the requested action requires the remote Player to be in its docked embedded state |
NS_E_PLUGIN_NOTSHUTDOWN | a Windows Media Player plug-in did not finish its shutdown contract |
NS_E_WMPOCX_ERRORMANAGERNOTAVAILABLE | the embedded ActiveX control cannot expose its automation error manager to the host |
Completion criteria
A representative failure pattern
Technical references
- Player control guide — normative or platform material relevant to it.
- Remoting the Windows Media Player control — API or format context for this HRESULT.
- Using skins with the control — documentation used to identify the producing boundary of it.
- IGlobalInterfaceTable interface — normative or platform material relevant to it.
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