Hi A client would like to have sbs2003 installed on one server to do everything bar email, they want to have Exchange installed on a separate box. Is this possible and if so what would the software cost and license implications be? Cheers.

R u speaking about a Domain controller on SBS2003 and Exchange on a Different version.. of OS

Hi i would imagine sbs2003 would be the DC with another server running server 2003 or 2008 with exchange. The client doesn't want to have all their eggs in one basket, so to speak.

Yes possible with Exchange 2003 and at least Exchange 2007. Licencing depends a bit on if it's SBS 2003 or SBS 2003 R2, and which version of Exchange. With both versions you need an additional Windows and Exchange license. SBS 2003 requires additional client access licenses (CALs). SBS 2003 R2 introduces expanded CAL rights and does not require additional CALs for Exchange 2003. With Exchange 2007 you need additional CALs. What are the expanded CAL rights in SBS 2003 R2? Customers running SBS 2003 R2 can use their CALs to access additional servers running Windows Server 2003, Exchange Server 2003 and SQL Server 2005 Workgroup Edition on the SBS 2003 R2 network. See the licensing questions section for additional information on SBS 2003 R2 CALs. http://www.microsoft.com/windowsserver2003/sbs/evaluation/faq/prodinfo.mspx Can I separate the components of SBS 2003 R2; for example, install Exchange or SQL Server on another server? You may not separate the software for use on more than one operating system environment under a single license. This applies even if the operating system environments are on the same physical hardware system, such as by using virtualization technology. http://www.microsoft.com/WindowsServer2003/sbs/evaluation/faq/licensing.mspx Note: The licensing for SBS 2003 R2 has always very clear on these points. With SBS 2003 (not R2), MS initially required an additional CAL for the Exchange server accessing the SBS box, but later went away from that. See for instance: Karen Forster (who usally is well-informed) http://windowsitpro.com/article/articleid/46170/things-readers-want-to-know-about-sbs-2003.html To the best of my knowledge these licensing rules for the old SBS 2003 (not R2) still holds true. One of the big selling points for SBS 2003 R2 were the dramatically expanded CAL rights. jas

Hi Tolvar, It's not a supported scenario and not recommended, and you need to buy new license if you want to do it The following link just FYI:http://www.msexchange.org/tutorials/Installing-Exchange-2007-Small-Business-Server-2003-domain-Part1.html Thanks, Elvis

Many thanks for the assistance :)