Smooth running of various business-critical applications is absolutely necessary for sustained business growth and provide quality customer service. Huge amount of resources of businesses are committed for efficient maintenance and support of applications that are installed. It is no doubt that Application Maintainance and Support throws open immense possibilities for cost savings for enterprises. Various applications that run on legacy platforms, client server platforms, and the latest multi-tier or browser-based architectures require efficient and thorough maintenance and support. Efficient maintenance and support of these key applications is crucial to make business-critical decisions.