Excel Server 2008 could be served for enterprise users.
Software Requirements
Excel Server 2008 (Enterprise Edition) could run at Windows2000/XP , or Windows Server2003 under the following conditions:
1. Windows 2000/XP
(1) Microsoft .NET Framework 1.1 Installation
(2) IIS installation
(3) MS SQL Server 2000/2005 Installation
(4) MS Office XP/2003 Settings MS Office Excel 2007 Settings
(5) IE settings
2. Windows server 2003
(1) IIS Installation
(2) MS SQL Server 2000/2005 Installation
(3) MS Office XP/2003 Installation MS Office Excel 2007 Settings
(4) IE settings