We want to install the Microsoft .NET Framework on Windows 2003 Server

Step 1.
Download Microsoft .Net Framework Version 3.0 from the Microsoft Download Site and click Run to install dotnetfx3setup.exe

Step 2.
On the Welcome to Setup page read the license agreement, select the I have read and ACCEPT the terms of the License Agreement check box, and then click Install.

Step 3.
Now You can see “Download and Install Progres” page.

Step 3.
On the “Setup Complete” page, click Exit