To compile the file associated with the current buffer, choose File > Compile . To compile multiple files associated with buffers, select them in the buffers view and choose File > Compile . If there is not a current buffer, the menu command File > Compile... is available, which prompts for a file to compile.
Note: this command calls the Common Lisp function
; it creates the fasl file but does not load it. You can use
File > Load
to later load the fasl.
To compile a file (or files) and load the resulting fasl file(s) with a single command, choose File > Compile and Load . If there is not a current buffer, the menu command File > Compile and Load... is available.
LispWorks IDE User Guide (Windows version) - 25 Nov 2011