IID_ITridentService3 {620CC4C4-C9C6-11DA-95AF-00E08161165F}

The ITridentService3 interface has just the one method (after the IUnknown methods):

Offset Method
0x0C FireBeforeNavigate3

with prototype:

HRESULT FireBeforeNavigate3 (IHTMLWindow2 *, IDispatch *, PCWSTR, DWORD, PCWSTR, PBYTE, PCWSTR, BOOL, BOOL *);


The ITridentService3 interface is implemented in

This interface is not documented by Microsoft in the January 2007 edition of the Windows Software Development Kit (SDK).