может написать DTS-пакет и обновляться ч/з какое-то время?

А выковырять провайдер из дистрибутива никак не получится?

может быть ещё это пригодится...

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wss/wss/_exch2k_sql_select_statement.asp

кроме того:
Вопрос:
How can I install OleDB provider for Exchange separately from Exchange installation(on another machine)?
Ответ:
You cannot. The Exchange 2000 OLE DB provider works only in conjunction with the Exchange Server. This provider cannot remote calls, but if you are using http: style URLs, this is not an issue. When you are on a remote system and you have either Office 2000 or Windows 2000 installed, they go through the Internet Publishing Provider, also known as Rosebud.

Хотя вот ещё:
> I set the connection string at run time and it works. Use this as a template
> Provider=Microsoft Exchange OLE DB Provider;Mode=<mode>;Data
Source=file://./backofficestorage/<your domain>/<your path>
>
> Sample:
> Provider=Microsoft Exchange OLE DB Provider;Mode=Read;Data
> Source=file://./backofficestorage/exchange.bsg.de/public folders/mails


Экспериментировать есть с чем. Может это поможет.