# How can I get some of my old lisp routines to work.  They don't work well with ActCAD.

I paid for a program to have developed for me that sets grades and elevations, similar to what Civil 3D does, but much more simple.  It partially works ok in ACTCAD.  It would be a great add on to what I can do if I could use it better.  It's also free if anyone wishes to use it.  They just can't make any money off of it without compensating me.

##### Post Metadata
- Posted at: over 6 years ago
- Author title: Civil Engineer at City of Mesa
- Net upvotes: 1


## Comments
### Comment 1

Please note that many LISP programs (.lsp) can be directly executed inside ActCAD. If you get any error, you need to debug the code where it is failing. As mentioned by another member, some of our commands and LISP functions are slightly different.

Also, note that we do not support .fas programs to execute inside ActCAD. We use our own (protect) function to encrypt LISP source codes. 

##### Comment Metadata
- Posted at: over 6 years ago
- Author title: ActCAD Software



### Comment 2

Good Day,
Yes, you can't use your old (AutoCAD) Lisp in ActCAD directly. Because some of the internal command options are vary from AutoCAD to ActCAD.
For Example refer "Layer" command options.
If you are a Lisp programmer you can find out the differences.

##### Comment Metadata
- Posted at: over 6 years ago



### Comment 3

Hi David, thank you for your valuable inputs. Please share the details of your programs we will try to improve them and add to ActCAD package. Please note that, we do not prefer LISP programs internally as it has several limitations. We will see the possibility to rewrite your codes in MFC VC++ and build them as irx programs. They will be much faster. Once again, thank you for choosing ActCAD.

##### Comment Metadata
- Posted at: over 6 years ago
- Author title: ActCAD Software




## Related Product
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