Microsoft Enterprise Library 5.0 on platform now.

Microsoft came up with a new version of Enterprise Library as 5.0 which is a collection of application blocks designed to assist developers with common enterprise development challenges. These applications are like type of guidance, provided as source code which can ve furhter used “as is” or extnded or modified for use in enterprise development projects.

Its a collection of reusable software components that are designed to assist the developers in accordance with common enterprise development challenges. You can download the Enterprise LIbrary and its documentation from following links.