The immediate problem is the the BeforeNavigate2 event is incorrectly handled by AxWindow with the net result of trying to deref a null pointer (memory at 0x00000000). This is a bug in AxWindow, however there are also known bugs in BeforeNavigate2 just to add fun. As you can see StatusTextChange is a simple method, BN2 is more complex and needs to be fed appropriately - it is not being fed what it needs. I suggest you contact the author or if you want to do ActiveX in Perl I understand ActiveState has some commercial (ie pay for) tools that probably work.

void BeforeNavigate2(          
    IDispatch *pDisp,
    VARIANT *&url,
    VARIANT *&Flags,
    VARIANT *&TargetFrameName,
    VARIANT *&PostData,
    VARIANT *&Headers,
    VARIANT_BOOL *&Cancel
);

void StatusTextChange(          
    BSTR Text
);
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