西门子上位软件wincc7.4破解版，用于计算机图像处理、报警、显示等(Simatic wincc7.4 for the Computer Image Processing Alarm Display)

wincc7.4免硬件狗（usb授权）补丁和安装方法。按里面的方法操作即可安装(wincc7.4 free hardware dog (usb license) patch and installation method. Follow the methods inside to install)