Once you have successfully installed and run LispWorks, you can configure it to suit your local conditions and needs, producing an image that is set up the way you want it to be every time you start it up.
There are two levels of configuration: configuring and resaving the image, thereby creating a new image that is exactly as you want it at startup, and configuring certain aspects of LispWorks as it starts up.
These two levels are available for good reason: while some configuration details may be of use to all LispWorks users on your site (for instance, having a particular library built in to the image where before it was only load-on-demand) others may be a matter of personal preference (for instance how many editor windows are allowed on-screen, or the colors of tool windows).
In the second case, you make entries in your initialization file. This is a file read every time LispWorks starts up, and it can contain any valid Common Lisp code. (Most of the configurable settings in LispWorks can be controlled from Common Lisp.) Your initialization file can be changed via
Tools > Preferences... in the LispWorks IDE.
config/configure.lisp is preloaded into the image before it is shipped. It contains settings governing fundamental issues like where to find the LispWorks runtime folder structure, and so on. You can override these settings in your saved image or in your initialization file. You should read through
config/siteinit.lisp contains any forms that are appropriate to the whole site but which are to be loaded afresh each time the image is started. The sample
siteinit.lisp file distributed with LispWorks contains only the form:
On startup, the image loads
siteinit.lisp and your initialization file, in that order. The command line options
-init can be used to specify loading of different files or to suppress them altogether. See the example in Saving and testing the configured image, below, and Initializing LispWorks for further details.
a-dot-lispworks.lisp are preloaded into the image before it is shipped, so if you are happy with the settings in these files, you need not change them. See the example in Saving and testing the configured image, below, and Initializing LispWorks for further details.
LispWorks Release Notes and Installation Guide - 2 Mar 2015