Editing Windows Server 2003 (section)

===Windows Small Business Server===
{{Main|Windows Small Business Server}}

Windows Small Business Server (SBS) is a [[software suite]] which includes Windows Server and additional technologies aimed at providing a small business with a complete technology solution.

The Standard edition of SBS includes [[Microsoft Remote Web Workplace]], [[Windows SharePoint Services]], [[Microsoft Exchange Server]], Fax Server, [[Active Directory]], a basic [[firewall (computing)|firewall]], [[DHCP server]] and [[network address translation]] capabilities. The Premium edition of SBS adds [[Microsoft SQL Server]] 2000 and [[Microsoft ISA Server]] 2004.

SBS has its own type of CAL that is different and costs slightly more than CALs for the other editions of Windows Server 2003. However, the SBS CAL encompasses the user CALs for Windows Server, Exchange Server, SQL Server and ISA Server, and hence is less expensive than buying all other CALs individually.

SBS has the following design limitations, mainly affecting Active Directory:<ref>{{cite web|url=http://www.microsoft.com/windowsserver2003/sbs/techinfo/overview/generalfaq.mspx#EIBAA|title=Windows Small Business Server 2003 R2: Frequently Asked Questions|publisher=Microsoft|date=July 11, 2006|access-date=September 2, 2006}}</ref>

* Only one computer in a [[Windows Server domain]] can be running SBS
* SBS must be the root of the [[Active Directory#Forests, trees, and domains|Active Directory forest]]
* SBS cannot trust any other domains
* SBS is limited to 75 users or devices depending on the type of CAL
* SBS is limited to a maximum of 4&nbsp;GB of RAM
* SBS domains cannot have any child domains
* [[Terminal Services]] only operates in [[remote administration]] mode on SBS, meaning that only two simultaneous RDP sessions are allowed<ref>{{cite web|url=http://www.microsoft.com/WindowsServer2003/sbs/evaluation/faq/licensing.mspx|title=Licensing – Windows Small Business Server 2003 R2: Frequently Asked Questions|publisher=Microsoft|access-date=September 2, 2006}}</ref>

To remove the limitations from an instance of SBS and upgrade to regular Windows Server, Exchange Server, SQL and ISA Server, there is a Windows Small Business Server 2003 R2 Transition Pack.<ref>{{Cite web |url=http://www.microsoft.com/technet/prodtechnol/sbs/2003/support/documentation/75a8c83b-24b8-4de4-928b-9e01e5b732b3.mspx?mfr=true |title=Windows Server 2003<!-- Bot generated title --> |website=[[Microsoft]] |access-date=2006-12-07 |archive-date=2020-10-03 |archive-url=https://web.archive.org/web/20201003223049/http://www.microsoft.com/technet/prodtechnol/sbs/2003/support/documentation/75a8c83b-24b8-4de4-928b-9e01e5b732b3.mspx?mfr=true |url-status=live }}</ref>