To add components to the AutoCAD LT installation
If you are running Windows NT 4.0 or Windows 95, Autorun begins the installation process as soon as you insert the CD unless you hold down the SHIFT key while you insert the CD.
If you have turned off Autorun, from the Start menu, choose Run, then designate the CD-ROM drive, and enter the path name and setup. For example, enter d:\setup.
If the installation program finds a version of AutoCAD LT 97 registered on your system, it prompts you to specify whether you want to install, add, or reinstall AutoCAD LT.
The Setup Confirmation dialog box displays the components you have selected and the target directory and program folder.