every time i try to install certain software, my computer gets an error that causes me to close the installation. the file name is called - C:/WINDOWS/SYSTEM32/AUTOEXEC.NT. and also it tells me that the system file is not suitable for running MS-DOS and Microsoft Windows applications. choose "close" to terminate the application. and there a close, and ignore option there and i tried both options and it still won't work!! usually this software comes up when installing games and printer software.