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NS_E_PDA_TOO_MANY_FILE_COLLISIONS
Failure boundary and ownership
NS_E_PDA_TOO_MANY_FILE_COLLISIONS with value 0xC00D1188 records generating destination names that repeatedly collide with existing device objects. The producing call and its state are more diagnostic than a later aggregate Player failure.
Underlying mechanism
At the checkpoint, windows Media Device Manager brokers between the Player, a device service provider and MTP, mass-storage or legacy device transports; Enumeration, Plug and Play identity, storage availability, format support and individual file operations are distinct checks. The page-specific boundary is generating destination names that repeatedly collide with existing device objects.
A device shown in Explorer can still disappear from the Player’s WMDM session or reject a media format, filename, directory operation or storage request. The condition can be reproduced when many tracks normalize to the same short filename on the device.
Trace fields worth keeping
| Evidence | Why it matters for too many file collisions |
|---|---|
| Producing object and operation | PnP instance and interface path, WMDM service-provider CLSID, device/partnership ID, connection generation, storage object and capacity, format-support result, firmware version, operation callback and first device or transport HRESULT |
| Decisive observation | source names, generated target names, collision counter and device naming rules |
| Generation identity | Record the same disc, device, job or Player operation generation that returned this result; a reconnect or media change creates a different test. |
| Underlying result | Keep the first device, filesystem, COM, codec, DirectShow, IMAPI or BITS result seen before the Player mapped it to this result. |
| Controlled comparison | Repeat the producing call after changing only this condition: choose a deterministic unique naming rule or remove the conflicting objects. |
What the comparison proves
| Observation | Interpretation |
|---|---|
| The recorded values match the boundary | The result is consistent with generating destination names that repeatedly collide with existing device objects; correct that state before changing unrelated codecs, drivers or playlists. |
| A lower layer failed before this result | Preserve that earlier HRESULT or device result because this result may be only the Player-level mapping. |
| The same call passes after one isolated change | The comparison supports the too many file collisions diagnosis rather than a broad installation failure. |
| The code changes after retesting it | The boundary was passed; diagnose the new HRESULT as the next independent stage. |
It scopes the failure to generating destination names that repeatedly collide with existing device objects.
Decision path
- Capture
0xC00D1188, it, the exact Player/API operation and the first timestamp at which it appears. - Save source names, generated target names, collision counter and device naming rules; do this before ejecting media, reconnecting a device, canceling a job or rebuilding the Player object.
- correlate the result with PnP instance and interface path, WMDM service-provider CLSID, device/partnership ID, connection generation, storage object and capacity, format-support result, firmware version, operation callback and first device or transport HRESULT.
- Reproduce once with the original source and destination, then apply only this change: choose a deterministic unique naming rule or remove the conflicting objects.
- Create a fresh operation generation and verify that the original call advances beyond the too many file collisions boundary.
Close alternatives
| Related result | Different diagnostic boundary |
|---|---|
NS_E_PDA_TOO_MANY_FILES_IN_DIRECTORY | adding an object to a device directory that reached its entry limit |
NS_E_PDA_MANUALDEVICE | encountering a device configured for manual transfer rather than automatic partnership sync |
NS_E_PDA_INITIALIZINGDEVICES | requesting device work while the Player is still constructing the device collection |
Safe correction
Correct this boundary by making sure you choose a deterministic unique naming rule or remove the conflicting objects. Then reacquire the interface or media state that produced it and repeat that call.
When verifying it, do not assume the old interface pointer remains valid after reconnect; Re-enumerate the device and storage objects and correlate the failure with the same connection generation.
Source material
- Windows Media Device Manager SDK.
- Enabling Plug and Play for WMDM devices.
- Portable-device capabilities and shell requirements.
- WMDM connection and storage notifications.
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