I finally upgraded my PC to Win XP Pro. = I installed UserPort and my LPT ports work fine. It seems as though UserPort is always loaded, and I do not need to run it b= efore I run WriteLog, or DX4Win in order to use the LPT port to control my = ZS4TX SCK II. Is this UserPort behavior normal? If so, great! Happy 2004 & 73! Bob N5NJ