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ex or st

New Member
Posts: 1
Country: USA

ex or st

Can anyone tell me the difference between ACT Premium 2008 EX and ACT Premium 2008 ST


Thanx for any help

Platinum Elite Contributor
Posts: 14,603
Country: Australia

Re: ex or st

The difference is the edition of Microsoft SQL 2005 that they install when on a Server operating system.


SQL 2005 EX is limited to 1 processor, 1GB RAM and 4GB database size

SQL 2005 ST is limited to 4 processors and no RAM limit

See -


If your server ony has one or two processors and 2GB or less RAM, there is no difference unless your database is >4GB.


If you want to have 25 or more concurrent users, you should use a server with the extra RAM additional processors and use the ST edition.