This interface has implementations in both IEFRAME and MSHTML. The IID is:

ITrustStateNotify {9E9139C5-E4B2-4314-AE73-75DA91EC2C4E}

This interface is not completely undocumented. It doesn’t get even a declaration in any Windows SDK header, but the corresponding IID_ITrustStateNotify is defined in the UUID.LIB library.


The ITrustStateNotify methods are:

Offset Method
0x0C TrustStateChanged


The following are known from Microsoft’s symbol files:

HRESULT TrustStateChanged (ULONG);