WBEMMOF_E_INVALID_INSTANCE_DECLARATION

Code: 0x80044018 (2147762200)

As HRESULT:

S: 1 (Failure)
C: 0 (Microsoft-defined)
N: 0 (Not an NTSTATUS value)
Facility: 0x004 (FACILITY_ITF: COM/OLE Interface management)
Code: 0x4018 (16408)

As NTSTATUS:

Sev: 2 (STATUS_SEVERITY_WARNING)
C: 0 (Microsoft-defined)
Facility: 0x004 (FACILITY_IO_ERROR_CODE: Input/Output)
Code: 0x4018 (16408)

Documented in Win32

WMI Error Constants (wbemcli.h): 0x80044018

The instance declaration is not valid. It must start with "instance of"