ComCode Pro - Version 1 ComCode Pro is a small program that will encrypt/encode and decrypt/decode text using an encryption key made up by the user. It is designed to work in conjunction with the Windows Clipboard. Although, you may type plain text directly into the ComCode Pro text box. It can be used to encrypt/encode E-mail or text based documents on your hard disk. It is not a public/private key system. The same key must be used to encrypt and decrypt text. Any combination of the ASCII characters that Windows® recognizes in a text file can be used as a key.