I need to compress and encrypt a replicated data set using email. I have written the code that attaches the data file to the email message, but need source code for compressing and encrypting the file, and of course, uncompressing and decrypting the file after recieved. Anybody has any source code or locations where I can get some? Likewise, I am willing to share my code for attaching and sending email using smtp from VB. Thanks.