An TN3270(E) emulator is a program that simulates all IBM 3270 terminals functions (sometimes having additional functions using microcomputer power). These functions are executed under TELNET protocol. Some emulators offer additional functions, based on microcomputer Operational System, where they are executed. Tec3270 offers some additional functions available only under WINDOWS(TM) environment. Below are listed some additional functions offered: ClipBoard (copy, cut and paste of selected text); Screen printing preview; Screen storing for further printing, formatted or not; Several simultaneous sessions activation with one or more TELNET servers; Secure sessions, based on cryptography (SSL/TLS) and X509 digital certificates; and much more...