John, What is the OS and do you have an antivirus program running? Bill K9YEQ K2 and KX1 field tester, K3 and modules -----Original Message----- Subject: [Elecraft] K3 EZ Hello to the group... I have tried installing K3 EZ on my WIN 7 (32 bit) machine, but the program hangs on launch. Any suggestions? John Ragle -- W1ZI