avrdude-gui is a simple GUI for avrdude (http://savannah.nongnu.org/projects/avrdude) which is a command line tool running on several OS to program the Atmel AVR Microcontrollers.
Why are custom entries (for e.g Programmer = "avrusb") not accepted ?? :-(
Nice, but prety old. In this program there is no way to set port above COM9, while avrdude allow to set option like -P \\.\com15