Komil_,
посмотри эту ветку
http://www.sql.ru/forum/1174593-1/vozmozhno-li-odnovremennoe-ispolzovanie-versiy-2003-i-2010
тут обсуждалось это

Komil_,
и ещё, вот цитата с сайта майкрософт -

"Windows Installer messages in Access

On a computer that has multiple versions of Access installed, the Windows Installer may start when you start Microsoft Office Access 2003 or Microsoft Office Access 2007 or Microsoft Office Access 2010. And, a "preparing to install" message or a "configuring" message may be displayed. You receive these messages before Access starts.

The Windows Installer Repair operation registers Access 2003 or Access 2007 every time that you start Access 2003 or Access 2007 after you use Access 2010. Similarly, the Windows Installer Repair operation registers Access 2010 every time that you start Access 2010 after you use an earlier version of Access. Access 2002 does not start a Repair operation after you use a later version of Access. If the version of Access that you start is the same as the version of Access that you previously used, the Windows Installer repair operation does not occur. "

Komil_guest_rusimportKomil_,
и ещё, вот цитата с сайта майкрософт -

"Windows Installer messages in Access

On a computer that has multiple versions of Access installed, the Windows Installer may start when you start Microsoft Office Access 2003 or Microsoft Office Access 2007 or Microsoft Office Access 2010. And, a "preparing to install" message or a "configuring" message may be displayed. You receive these messages before Access starts.

The Windows Installer Repair operation registers Access 2003 or Access 2007 every time that you start Access 2003 or Access 2007 after you use Access 2010. Similarly, the Windows Installer Repair operation registers Access 2010 every time that you start Access 2010 after you use an earlier version of Access. Access 2002 does not start a Repair operation after you use a later version of Access. If the version of Access that you start is the same as the version of Access that you previously used, the Windows Installer repair operation does not occur. "
Как раз этого и хотелось избежать. Или перед запуском нужной версии править Win реестры? Никто не знает какие реестры следует подправить, чтобы не выходило Windows Installer?

почитай тут ещё (может и поможет)
http://forum.ixbt.com/topic.cgi?id=23:40952