When you call up the Preferences menu, the actual words you see are taken from the file sys:sbrmsg.usa. If you see odd codes in place of intelligible options, then your sbrmsg file is not being found.

Any temporary work files required by APEX are created in the APEX folder.

The default location of the APEX folder is This PC\documents\apex (c:\users\<username>\documents\apex), and this folder will be created the first time it is needed. If you don't like this location and/or want it to be placed somewhere else, you may create an environment variable called "APEX" and point it wherever you wish.

Most of the print preview and display-related aspects of APEX are performed by a program module called sftprintpreview_###.dll where "###" is platform and version information. This file lives in the main A-Shell or ATE folder on your PC.