First, change the extension from .exe, and tell the recipient what it is and that he must rename it properly to run it. Things go faster if compressed, so I usually compress with PKZip or WinZip. Just make sure you tell the recipient what he has to do to extract the .exe from whatever form you send. Also, be aware that some ISPs restrict the sizes of email attachments that can be sent. Recently, I tried to send an attachment of over 3 megabytes over a 56K modem. After a long time (twice), failure occurred with no real explanation as to what went wrong. Sending a smaller file of less than 2 meg went just fine.