It is been two tiresome nights to sort out the issue of AVR USB Programmer. Really, Windows Vista is an OS which learners should never think of. Lots of efforts put on it went vain until Ubuntu came to my rescue.

The following GNU tools come in handy when it comes to AVR development in Ubuntu:

• gcc-avr : GNU C Compiler
• binutils-avr : Binary utilities (linker, assembler)
• avr-libc : C Library
• gdb-avr : GNU debugger

I'm using AVRDUDE to program my Atmel AVR MCU.