Re: System-wide hooking, VB+ASM


"Sam Hobbs" <samuel@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:ONSzsLuaFHA.3572@xxxxxxxxxxxxxxxxxxxxxxx
> "Simon Woods" <simonDELETECAPSjwoods@xxxxxxxxxxxx> wrote in message
> news:OobPF5maFHA.2128@xxxxxxxxxxxxxxxxxxxxxxx
> >
> >
> > Where I am is that I see a DLL as simply binary data in a particular
> > form/wrapping ... whatever. Why can't that binary data be placed into a
> > standard project in the same way as any other thunk and be used/invoked
> > (however that would be done) for system-wide hooking?
>
> I apologize if I am interpreting this out of context, but I think I can
> answer in a useful manner.

no need to apologise


> Another way of describing a DLL is as a collection of functions that can
be
> related but are not required to be realted to be in a DLL. I think you
know
> that but I am not sure.
>
> I think the problem is the VB runtime. It is very common for higher-level
> languages such as VB to have a runtime environment that must be
initialized
> somehow. The VB runtime environment is not a problem when an ActiveX
control
> is used by an applicaiton (a process) that does not use VB since
apparently
> VB builds into the ActiveX DLL code to initialize the runtime. When the
DLL
> is used in an application without the ActiveX being used and without VB
> being used by that application, then it is likely that the runtime does
not
> get initialized. That is my guess, but it seems likely to me that it is a
> problem that will prevent use of a DLL created by VB as a system-wide hook
> DLL.

I'd accept this if the hooking mechanism had a dependency upon VB RT. If the
hooking mechanism is an pre-written, pre-compiled thunk, surely there need
be no dependency upon the VB runtime so no initialisation would be required
....what am I missing?

Simon


.

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