Installation Exchange2010 checklist
1.Active Directory domain controllers: Windows Server 2003 SP2 or later
2.Active Directory domain and forest functional level: Windows Server 2003 or higher
3.DNS requirements
4.Exchange Server 2010 schema changes
5.Active Directory Domain Services (AD DS) management tools
6.Microsoft .NET Framework 3.5 or later
7.Windows Remote Management (WinRM)
8.Windows PowerShell Version 2
9.2007 Office System Converter: Microsoft Filter Pack
10.Web Server (IIS) server role along with the following role services:
ISAPI Extensions
IIS 6 Metabase Compatibility
IIS 6 Management Console
Basic Authentication
Windows Authentication
Digest Authentication
Dynamic Content Compression
.NET Extensibility
11.Windows Server 2008 features
WCF HTTP Activation
RPC over HTTP Proxy
12.Net.TCP Port Sharing Service set to start automatically