Re: Using same interfaces for in-proc vs. out-proc

"Igor Tandetnik" <>
Thu, 5 Nov 2009 17:32:27 -0500
Drew <> wrote:

That's my point. The EXE and DLL would have different LIBIDs in their
typelib. One for the EXE one for the DLL.

Why? They describe the same interfaces with the same IIDs, right? Why do =
you want different LIBIDs?

My concern is the interfaces
defined in the typelib and how they reference the LIBID. In this
scenario would I be able to have both EXE and DLL registered at the
same time?

Yes. But, again, you'll have a problem if the one that was registered =
last is uninstalled first, because it'll remove marshalling support for =
your interfaces from the registry.

How would the non-unique IID interfaces resolve which
server they referred to?

IIDs do not refer to a server: after all, thousands of servers implement =
IUnknown or IDispatch. IIDs (often) refer to a LIBID, with the type =
library providing marshalling support. Now, you are attempting to tie a =
LIBID to a server: your problems stem from that.
With best wishes,
    Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not =
necessarily a good idea. It is hard to be sure where they are going to =
land, and it could be dangerous sitting under them as they fly overhead. =
-- RFC 1925

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