Many users have this problem, but often try to verify that the CAD to replace the 2005 or 2007 version of the user, now you can install the Yan Xiu Toolbox, below to bring you the installation Yan Xiu Toolbox has no write permission to the following specific steps:
1, first installs the Yan Xiu Toolbox 2.8 above version, then copies the Yanxiu.cui to the Yan Xiu Toolbox installation directory;
2, then open the AutoCAD2008, and then close the pop-up Permissions window, in the toolbar blank in the right key to select "Custom (C) ...";
3, in the Open custom window select "There is a plus folder that icon", and then add the 2nd step of the Yanxiu.cui this file, preview to find the file and click on the Open;
4, through the above settings, the "Custom" window in the "Apply" is activated, click "Apply", and finally follow the system prompts to restart the computer to take effect on the solution.