Please don't click on the EXE or BAT files in Windows Folder! 
Installation instructions below

This add-on package is for LCARS 24 version 3.1 or higher and is 
to be installed in the same manner as LCARS 24 itself, normally to 
be transferred by floppy disk to drive C: of the destination machine, 
DISK-A1.EXE and ADDON1.BAT on the first disk and DISK-A2.EXE 
on the second. 

Once that's done, typing ADDON1 instructs the batch file to distribute 
these files to the correct folders and create five new subfolders. 

What to they contain? 

One MP3. It goes in the MP3 folder. It's theme music from Star Trek: Voyager. 
The file is about six years old, source unknown, perhaps no longer available 
anywhere else. It can be used for the MP3 option of the alarm, but will just 
keep repeating if it's the only MP3 in the folder. Don't try playing MP3s  
LCARS 24 if running it under Windows.  It's a bad host. 

The following will become assessable by pressing F5 on the clock screen then 
selecting any of them: 

Five Web pages, containing 10 Sev-Trek (by John Cook) comics each, one page 
for each Trek series except TAS. These were in older versions of LCARS 24, 
but to limit package size and installation effort, they have been separated from the 
base package. They were free and freely distributable when obtained and first 
included, but there may be a charge for new Sev-Trek or other Sev comics, which 
is said to be a temporary situation. There is also a Sev-Trek 3-D animated movie. 

The Web site is as follows: 
http://cartoons.sev.com.au/Sev-Space/Sev-Trek/

Detailed schematics of the Enterprise (by Jonathon Burke) and a shuttlecraft 
(by Raymond Lefebvre) from the original series, as well as several Trek-related 
image files.   