SBS 2003: Windows Small Business Server 2003 R2 Transition Pack

Windows Small Business Server 2003 R2 is designed for businesses with up to 75 users or devices. If you have outgrown your SBS 2003 R2 and wish to upgrade to regular Windows Server, Exchange Server, SQL and ISA server versions. Windows Small Business Server 2003 R2 Transition Pack aids seamless movement to the full line of Windows Server products.

1. Converts your Windows Small Business Server 2003 R2 license into standard licenses for each of the individual server components, such as Windows Server 2003 Standard Edition and Exchange Server 2003 SP2.
2. Removing the design constraints of Windows Small Business Server 2003 R2, which include a 75 user or device limit, support for branch offices, and a requirement to keep Windows Small Business Server 2003 R2 as the main logon server.

Further Information:

Microsoft: Windows SBS 2003 R2 Transition Pack