DRM_E_INVALID_SIGNATURE
Code: 0x800480cf (2147778767)
As HRESULT:- S: 1 (Failure)
- C: 0 (Microsoft-defined)
- N: 0 (Not an NTSTATUS value)
- Facility: 0x004 (FACILITY_ITF: COM/OLE Interface management)
- Code: 0x80cf (32975)
- Sev: 2 (STATUS_SEVERITY_WARNING)
- C: 0 (Microsoft-defined)
- Facility: 0x004 (FACILITY_IO_ERROR_CODE: Input/Output)
- Code: 0x80cf (32975)
Documented in Win32
Error Codes (Windows Media Device Manager 11 SDK): 0x800480CF
The license signature is not valid.