Switch between Outlook and OutlookExpress

[Michi]

Hello there

I try to access the Outlook/Outlook Express AddressBook with the
MAPISession/MAPIMessage Components.

Depending on the registry setting. I can tell the sytem which
AddressBook it should load.

HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\

(Standard)->Outlook Express or
(Standard) ->Microsoft Outlook

The only problem is that i can not swtich between the Outlook/Outlook
express in real time. To switch the adressbook i have to restart my vb
exe.

How can I to real time switch without shutting down my vb exe.

Thanks
Michi