Determine Whether Your Windows Server 2003 Meets the Minimum Requirements for Installing the .NET Framework:

1. Verify that Windows 2000 Service Pack 2 is Installed.
2. Verify that Microsoft Data Access Components (MDAC) 2.7 or later is Installed. 
3. Verify that Microsoft Internet Information Services (IIS) 5.0 is Installed.
4. Verfiy that Windows Imaging Component (MIC) is Installed.
5. Verify that Windows Management Instrumentation (WMI) is Installed.

If Requirements Not Satisfied, Install the Compoents in the Package Respectively, or See the Microsoft Reference for more infomation:
http://support.microsoft.com/kb/815176/en-us 
