Visual LISP provides a number of options for compiling and linking a project's source code that affect the efficiency of the compiled code. 
Note: The Visual LISP IDE is available on Windows only. 
- In Visual LISP, click Project 
 Open Project.  
- In the Enter Project Name dialog box, click Browse. 
 
- In the Open Project dialog box, select the project (PRJ) file you want to open. Click Open. 
 
- In the Project window, click Project Properties. 
 
- In the Project Properties dialog box, Build Options tab, specify the build options for the project. Click OK.