Hi,

Is there some way to avoid this issue ???? Some workaround ???

I instaslled Exchange + Outlook on same machine only for demonstration
my product reason.

Use a virtual machine product like Virtual PC, Virtual Server or VMWare to
run a second machine on your real PC so that you can separate Exchange
Server and Outlook. Everything else is unsupported and as you saw some
things do work and others don't, which even depends on which Server and
Client you mix.
I would guess that Exchange 2007 and Outlook should mix, as Exchange is
64-bit and Outlook 32-bit, so they use different dlls. And IIRC Exchange
2007 does not use MAPI any more. But that forces you to install e 64-bit OS,
i.e. Windows Server 2003 x64 i at the moment

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SvenC