What does HRESULT 0x80042404 (VDS_E_ANOTHER_CALL_IN_PROGRESS) mean?

Status / error code:

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Constant name:

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Description:

A second VDS call was made on an object before the first one completed.

Could be also:
Constant	Type	OS
VSS_E_ASRERROR_MISSING_DYNDISK	HRESULT	Windows

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VSS_E_ASRERROR_NO_ARCPATH	VSS_E_ASRERROR_MISSING_DYNDISK

VDS_E_ANOTHER_CALL_IN_PROGRESS

VDS_E_ANOTHER_CALL_IN_PROGRESS means that the same VDS object is already busy with another call. This is a serialization problem rather than a storage-capacity or disk-health error; concurrent operations must be coordinated around the object and any asynchronous operation it owns.

What to check

Wait for the existing operation to complete and retrieve its final status before issuing another state-changing call on the same object.
Ensure that UI actions, worker threads, and cancellation paths do not start duplicate operations against one VDS object.
Log the object identity and operation correlation so a pending call can be matched with the later conflicting request.

Microsoft: VDS common return codes

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