What is Dot NET Frame work..??

The .NET Framework represents a unified, object-oriented set of services 
and libraries that embrace the changing role of new network-centric and 
network-aware software. In fact, the .NET Framework is the first platform 
designed from the ground up with the Internet in mind.

Benefits of the .NET Framework
The .NET Framework offers a number of benefits to developers:
§ A consistent programming model
§ Direct support for security
§ Simplified development efforts
§ Easy application deployment and maintenance