Hi!,
This email was created by [MemberName] <[MemberEmail]> who thought you would be interested in the following Article:
"An Analysis of the Windows PE Checksum Algorithm"
An Analysis Demonstrating the PE Checksum is an Additive Checksum based on RFC 1071
CodeProject also contains hundreds of articles, free source code samples and applications to help in your day to day programming. Why not give it a try!