This book is an introduction to enterprise computing capabilities offered by Microsoft^® as compared to mainframe technology, and how the Microsoft Windows^® platform can be an effective alternative to the mainframe environment. The goals are to provide an overview of the Microsoft enterprise platform including the Windows Server System™, the Windows development environment, and available prescriptive guidance and support relative to platform migration and subsequent operation.

http://www.microsoft.com/technet/itsolutions/cits/interopmigration/mainframe/msepmp.mspx