We have a mobile user that uses Outlook 2003 with Cache mode. The account is 2.2 gig big. We have cleaned the account as much as possible. Archiving is not an option. We are running Outlook 2003 on his system and Exchange 5.5 SP4 on our mail server. My question is how do we increase the size of the OST? I have recreated the OST and I keep hitting the 2 gig limit. I have looked at http://support.microsoft.com/default.aspx?scid=kb;en-us;832925&Product=out2003
but this does not work. First the above article requires that you modify registry entries in the following location HKEY_CURRENT_USER\Software
PST. I did not find any key for \Office\11.0\Outlook\PST or OST. I did try to add them manually but this also did not work. The system in question is running Windows XP SP 1 and we have also tried this on Windows 2000 SP4.