What does HRESULT 0x8004256C (VDS_E_INVALID_QUERY_PROVIDER_FLAG) mean?

 
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VDS_E_INVALID_PROVIDER_VERSION_STRING VDS_E_INVALID_SERVICE_FLAG

VDS_E_INVALID_QUERY_PROVIDER_FLAG

VDS_E_INVALID_QUERY_PROVIDER_FLAG means the mask passed to IVdsService::QueryProviders is not a valid combination of VDS_QUERY_PROVIDER_FLAG values. Query flags select provider categories; they are not provider type enum values or provider property flags.

Build the provider filter from the correct enumeration

  • Decode every bit in the query mask before the call.
  • Request only documented software, hardware or virtual-disk provider categories.
  • Handle future provider types in returned data without sending unknown query bits.

Masking all unknown bits silently can conceal configuration and SDK-version errors. Report the numeric mask and symbolic values. If the application wants all supported providers, use the documented combination rather than passing an arbitrary all-bits-set value.

QueryProviders · Query-provider flags · Provider types


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