E_DAO_ColumnInUse

Code: 0x800a0cd0 (2148142288)

As HRESULT:

S: 1 (Failure)
C: 0 (Microsoft-defined)
N: 0 (Not an NTSTATUS value)
Facility: 0x00a (FACILITY_CONTROL: Control mechanism)
Code: 0x0cd0 (3280)

As NTSTATUS:

Sev: 2 (STATUS_SEVERITY_WARNING)
C: 0 (Microsoft-defined)
Facility: 0x00a (FACILITY_TERMINAL_SERVER: Windows Terminal Server)
Code: 0x0cd0 (3280)

Abstract

Can't delete a field that is part of an index or is needed by the system.