How to Load an AutoLISP File

If you’re using AutoCAD for long period of time and you know how to use the AutoLISP and the importance of it. You probably know how to load the AutoLISP file in AutoCAD, and you certainly don’t need to read this tutorial. But if happens that you are relatively new on using the AutoCAD and you want to expand your knowledge in this drawing application software, then this tutorial is for you.

AutoLISP a Brief Description

AutoLISP is based on the LISP programming language, which is simple to learn and very usefull in everyway. AutoLISP Applications or routines can interact in AutoCAD in many ways. These routines can prompt the user for input, access built-in AutoCAD commands directly, and modify or create objects in the drawing database. By creating AutoLISP routines you can add discipline-specific commands to AutoCAD. Actually, some of the standard AutoCAD commands are AutoLISP applications. Knowing how to load and use these routines can enhance your productivity.

Loading the AutoLISP

There are two methods to load an AutoLISP file, one is loading it by using the Customize User Interface editor or CUI, the other is by using the command Load Application or simply APPLOAD. Customize User Interface editor can be found by clicking the CAD Manager pulldown menu, then Customize, then Interface (fig.1).



Alternatively at the command prompt, key-in CUI. Then in the Customize Interface editor tab, in the Customizations in all CUI files pane, right-click LISP files, then click Load LISP. Then in the Load LISP dialog box, locate and select the AutoLISP file you want to load. Remember only files with the extension LSP can be selected here. After you selected the AutoLISP file that you want, click OPEN.



Load Application or simply APPLOAD, using this command is the easiest method in loading an AutoLISP file. You can find this command under CAD Manager pulldown menu on the same place where the Customize User Interface can be found. Or at the command prompt key-in APPLOAD. The good thing in using this method is, not only the AutoLISP files can be loaded but also some other AutoCAD Application files as well. Such as ObjectARX files (arx), VBA files (dvb), ObjectDBX files (dvx), Visual Lisp Executables (vlx), and Fast-load AutoLISP Format (das) [Fig.3].



More of this method here in this post Free AutoLISP Routine.

Using Drawing Recovery Command

I know all of us AutoCAD users, has experienced losing our drawing files when a program system failure came unexpectedly. Or sometimes when a power failure or a software problem happens right in the middle of doing our work. And because it is too sudden, most of the times we haven’t saved our drawings.

So in order to avoid losing much of our work, we tend to use Automatic Save so that even we forget to save our work, the AutoCAD automatically save it for us, albeit it only saved some of it from the time frame we had set.

Some years ago, when I’m just using the previous version of AutoCAD notably the  AutoCAD 2002 (this version has the most program error I had encounter), when this system error unexpectedly happen and the AutoCAD shutdown unexpectedly. I used to look for my automatically saved drawing ($) on temporary folders using the window explorer.

So now if you are using latest version of AutoCAD, just as I am using the not so latest AutoCAD Architecture 2008. Recovering our drawing is not that  complicated anymore. Because this version of AutoCAD has this command, DRAWING RECOVERY.


This command, recovered our drawing automatically for us. After a system failure, or the AutoCAD program failure unexpectedly came, the Drawing Recovery Windows Manager will open the next time we start AutoCAD session. The Drawing Recovery Windows display the list of all drawing files that were open. However unsaved drawings that are open at the time of an unexpected failure are not tracked by the drawing recevery manager. So it is always safe that we always save our drawing from time to time, even if we had set Automatic Save for file precautions.

If happens that you close the Drawing Recovery Window,  before recovering all files tha you want to recover, you can always access Drawing Recovery command at all times by accessing from the Files pulldown menu, then Drawing Utilities, then Drawing Recovery. Or at the command prompt, type DRAWINGRECOVERY.