What does HRESULT 0x80040E73 (DB_E_BADINITSTRING) mean?

 
Previous Next
DB_E_BADINDEXID DB_E_NOPROVIDERSREGISTERED

DB_E_BADINITSTRING

Exact value and result class

DB_E_BADINITSTRING has unsigned value 2147749491 (0x80040E73) and signed 32-bit value -2147217805. AllStat describes it as “Format of the initialization string does not conform to the OLE DB specification”. In this result, the initialization string cannot be parsed according to OLE DB initialization-string syntax.

The high bit is set, so this result is a failure HRESULT. Its facility is 4 (FACILITY_ITF) and its low code is 3699 (0x0E73). These fields identify an interface-defined result family; they do not identify the provider instance, method, object generation or partial effects.

Evidence to collect

A useful this result event records provider CLSID and version, process architecture, interface IID and method, object correlation ID, transaction state and the immediately preceding HRESULT. When recording it data involving passwords, tokens, server names and complete connection strings, use types, lengths, hashes or redacted identifiers rather than secrets or complete business data.

  • Evidence 1 for it: redacted tokenization result and failing offset.
  • Evidence 2 for it: property names and VARIANT types after parsing.
  • Evidence 3 for it: the code path that built the string.

Contract boundary

OLE DB initialization strings select a provider and set initialization properties before IDBInitialize::Initialize. Syntax errors, missing provider registration and a provider mismatch are distinct from server connectivity and authentication failures.

Investigation of this result should start with the uninitialized data source object, parsed initialization properties and provider CLSID or ProgID. Capture it before ADO, ATL,.NET or a database abstraction layer replaces the native HRESULT with a generic exception.

Conditions that specifically lead to it

  • Cause 1 for it: a property assignment is malformed or improperly quoted.
  • Cause 2 for it: a separator or escape sequence is invalid.
  • Cause 3 for it: an application concatenates unescaped user data into the string.

Diagnostic sequence

  1. Capture raw 0x80040E73 and symbolic it at the native call boundary.
  2. Identify the exact failing stage for it: the initialization string cannot be parsed according to OLE DB initialization-string syntax.
  3. Retrieve all OLE DB error records for it before another COM call replaces thread error information.
  4. Compare the live object state and provider-granted capabilities with the input that produced it.
  5. Reduce the operation to the smallest case that preserves the same init contract.
  6. Apply one evidence-backed correction for it and verify that the result is not merely replaced by a neighboring HRESULT.

Corrective actions

  • Action 1 for it: use IDBProperties rather than string concatenation where possible.
  • Action 2 for it: quote and escape values with a tested builder.
  • Action 3 for it: reject duplicate or malformed properties before provider activation.

Practical scenario

A password containing a semicolon is concatenated without quoting; a connection-string builder preserves it as one property. Keeping it with the method and object state makes this scenario diagnosable instead of reducing it to “database error”.

Developer and operations guidance

Code handling it should release COM objects in ownership order, retain per-row, per-column or per-property statuses, and log granted capabilities rather than only requested options. While handling it, opaque values such as HACCESSOR, HROW, HCHAPTER, DBID components and provider handles must remain scoped to the object that issued them.

Operational dashboards for it should group by provider version, interface, method and normalized failure stage. A it event must not expose passwords, tokens, full connection strings, unrestricted command text or raw row contents.

Retry and recovery

Retry rule for it: retry after producing a syntactically valid initialization string. A it retry is safe only when the relevant input, object generation, capability or external state has changed. Before replaying a modifying call that returned it, determine whether rows, schema objects or URL resources were partially created or changed.

Do not turn it into an unbounded retry loop. Preserve cancellation for it and use a fresh provider object when the failed call may have left local state ambiguous.

Difference from nearby HRESULT values

DB_E_MISMATCHEDPROVIDER parses the string but finds the wrong provider, while it means parsing itself fails. Telemetry and remediation for it should keep these outcomes distinct.

Official Microsoft references

Looking for a different code? Search another status or error code.