WinAVR (tm) is a suite of executable, open source software development tools for the Atmel AVR series of RISC microprocessors hosted on the Windows platform. Includes the GNU GCC compiler for C and C++.
Apparently the developer is not aware that Windows software should be installed in 'Program Files' or 'Program Files (x86)'. By default WinAVR is installed at the root. He allows installation to the standard directories, but when you install to these directories, the tools no longer work (probably because the developer does not know how to handle spaces and '('/')' in paths. These are allowed in Windows but not in Linux. The easiest fix for this error is to install in standard directory, and then create a symbolic link at the root. (something like: mklink /D C:\WinAVR C:\Program Files (x86)\WinAVR), and then fix up the environment variables to point to the right place. Also, the avr-gcc -mstrict-X option is not supported in the latest trunk binary, which ends up breaking a lot of make files.
not working for windows 8.1 can anyone suggest anything plz nedd urgently to work on it