make_flash_image_script not working on Win7

I have the same problem with the Win7 I tried making new folder and placing all it required files (make_all_and_flash_images_script, make_all_flash_images_script, make_boot_flash_image_script, make_flash_image_script, make_header.pl, read_flash_image.pl) in that folder along with .elf file and also tried by giving full permissions to the command shell. But also unable to solve the problem. Can anyone please help me out with this error. I also attached my command shell picture with error displayed in it. Please do let me know is there any way to solve this.